Question

what same number should be added to each of thenumber 2,7,10,25 so that they form a proportion

Answer 1

To These four to be in proportion (2+x)/(7+x) = (10+x)/(25+x)

(2+x) (25+x) = (10+x) (7+x)

50+2x+25x+x squared = 70+10x+7x+x squared

50+27x+x squared = 70+17x+ x squared

10x=20

x=2

Answer: 2 should be added to each of the number.

Answer 2

Here is your ans
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