What will come in place of 'X', and \(X > 0\), in the equation \(\dfrac{X}{125} = \dfrac{5}{X}\)
25
Cross-multiply the equation \(\dfrac{X}{125} = \dfrac{5}{X}\) to get \(X \times X = 5 \times 125\).
So \(X^{2} = 625\).
Taking the positive square root (since \(X > 0\)): \(X = \sqrt{625} = 25\).
Hence, the value of X is 25.
Similar Questions
What is the mean proportional between \(3 + \sqrt{2}\) and \(12 - \sqrt{32}\)?
Find the number which when subtracted from 11 and 67 will give 21 as their mean proportional.
The mean proportional between two numbers is 42. If one of the numbers is 31, find the other number. (Round to the nearest whole number).
Find the mean proportional of 6.5 and 24.
If 7 and 20 are two numbers, what is their mean proportional?
If the mean proportional between two numbers is 12 and one of the numbers is 8, what is the other number?
If 4, 8, x and 12 are in proportion, then what is the mean proportion between (x + 3) and (x + 30)?
The width of a rectangle is 16 cm. If the length is the mean proportional between 9 cm and 16 cm, find the length of the rectangle.
Which value is the mean proportional between 18 and 45?
Important Questions from Mean Proportional
- Find the mean proportional between 19 and 76.
- Find the mean proportional of 324 and 16.
- Find the mean proportional between 28 and 252.
- Find the mean proportional of 400 and 4.
- Find the mean proportional of 225 and 4.
