\( \dfrac{16}{36} = \dfrac{\square}{63} = \dfrac{36}{\square} = \dfrac{\square}{117} \)
\( \dfrac{16}{36} = \dfrac{28}{63} = \dfrac{36}{81} = \dfrac{52}{117} \)
Simplify first ratio: \(16/36 = 4/9\). For numerator with 63: \(x/63=4/9 \Rightarrow x=28\). For denominator with 36: \(36/y=4/9 \Rightarrow y=81\). For numerator with 117: \(z/117=4/9 \Rightarrow z=52\).