Select the option that is related to the third term in the same way as the second term is related to the first term.
$$\frac{7}{50} : \frac{9}{82} :: \frac{13}{170} : ?$$
Given that
 $$\frac{7}{50} : \frac{9}{82} :: \frac{13}{170} : ?$$
the above is follow that patternÂ
$$\dfrac{7 \times 1}{7^2 +1} : \dfrac{(7+2)\times 1} {9^2 +1} $$
then same patternÂ
$$\dfrac{13\times 1}{13^2+1} : \dfrac{(13+2)\times1} {15^2 +1}$$
$$\Rightarrow \dfrac{13}{170} : \dfrac{(15)\times 1} {226}$$
therefore ? = $$\dfrac{15}{226}$$AnsÂ
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