Question

The 1st, 2nd and 4th terms of a proportion are 4, 5 and 45 respectively. Its third term is

Answer 1

Answer:

4:5 :: x : 45

As, product of extremes is equal to product of means,

4 × 45 = 5x

180 = 5x

x = 180/5

x = 36

HENCE, the third term is 36.

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