Question
If 96 : y :: y : 6, find the positive value of y.
The correct answer is
24
Using proportion: 96 × 6 = y² → y = √576 = 24
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Important Questions from Mean Proportional
What number must be added to each of the numbers 15, 9 and 5 so that the resulting numbers may be in a continued proportion ?
When x is subtracted from each of 43, 38, 11 and 10, then the numbers so obtained in this order are in proportion. What is the mean proportional between (11x + 3) and (9x - 2) ?
Find the mean proportional between 4 and 900.
If 22, x, 88 are in a continued proportion, find the value of x.
A. 24
B. 33
C. 44
D. 36
The arithmetic mean and geometric mean of two numbers are 7 and 2√10 respectively, then find the numbers.
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