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.
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Important Questions from Mean Proportional
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What is the mean proportional of 40 and 90?
The first, third and fourth terms of a proportion are 8, 16 and 6 respectively. What is the second term?
The mean proportional between 0.16 and 0.64 is:
What is the mean proportional between 3 and 27?
