1.

If 36, 54, x are in continued proportion, find the value of x.

Answer»

Since 25, 35, x are in continued proportion, we have:

= 36: 54 :: 54: x

We know that,

Product of extremes = product of means

= 36 × x = 54 × 54

= 36x = 2916

= x = (2916/36)

= x = 81



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