The ratios and are equivalent.
Equivalent ratios : Two or more ratios are called equivalent ratios if they are equal after reducing them into their simplest form.
To get Equivalent ratios, Each term of the given ratio is multiplied by a same number or divided by a common factor.
It is given that, The ratios and are equivalent.
Re write as and are equivalent.
Here, Each term of given ratio is multiplied by
i.e
Which is .
Hence, the answer for the given blank is .