Question

find the missing number: 7:__= 84 : 66​

Answer 1

Answer:

7:_::84:66

Let missing number be x

So, 7:x::84:66

product of extremes=product of means

7*66=x*84

462=84x

x=462/84

x=5.5

Hence, missing number is 5.5

Step-by-step explanation:

Hope it helped u dear frnd...

Answer 2

7 : _ = 84 : 66

$\small \rm let \: the \: unknown = x$

$⟹\rm{{\large { \frac{7}{x} } = \frac{84}{66} }}$

$\small \rm multiplying \: both \: sides \: by \: x \: and \: 66$

$⟹\rm{{ 7 \times66 = x \times 84 }}$

$⟹\rm{462 = 84x}$

$⟹\rm{{\large{ \frac{462}{84} = x}}}$

$⟹\rm{\large{ \frac{77}{14} }}$

$⟹\rm{5.5}$

7 : 5.5 :: 84:66