An unknown number (x) represents 100%.
63 represents 25%.
Then, we can use the next proportion:
[tex]\frac{x}{63}=\frac{100\text{ \%}}{25\text{ \%}}[/tex]Solving for x:
[tex]\begin{gathered} x\cdot25=100\cdot63 \\ x=\frac{6300}{25} \\ x=252 \end{gathered}[/tex]63 is 25% of 252
