2- 3- 6- x are in proportion- Find x-A- 9B- 4C- 18D- 12

The correct option is A 9 2 : 3 :: 6 : x (given) We can write the above proportion as 2/3 = 6/x On cross multiplying, x = 18/2 x = 9 Therefore the fourth ...

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Standard IX

Mathematics

Continued Proportions

2: 3:: 6: x a...

Question

2 :3 :: 6 : x are in proportion. Find x.

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Solution

The correct option is C 9
2 : 3 :: 6 : x (given)
We can write the above proportion as
$\frac{2}{3} = \frac{6}{x}$
On cross multiplying,
$x = \frac{18}{2}$
$x = 9$
Therefore the fourth proportion is 9.

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2 :3 :: 6 : x are in proportion. Find x.

The correct option is C 9 2 : 3 :: 6 : x (given) We can write the above proportion as 23=6x On cross multiplying, x=182 x=9 Therefore the fourth proportion is 9.

The correct option is C 9
2 : 3 :: 6 : x (given)
We can write the above proportion as
$\frac{2}{3} = \frac{6}{x}$
On cross multiplying,
$x = \frac{18}{2}$
$x = 9$
Therefore the fourth proportion is 9.