1.

Find the fourth proportional to 2,4 and 18

Answer»

ANSWER:

Let the fourth PROPORTION be x

acc. to question :-

\bf \tt \: product \: of \: means =  \: product \: of \: extremes \\ \bf  \tt \: 4  \times x = 2 \times 18 \\  \bf \tt \: x =  \frac{2 \times 18}{4} \\   \tt \: x = 9

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