ANSWER
[tex]34 : 13[/tex]
EXPLANATION
The length of the rectangle is
[tex]8 \frac{1}{2} \: inches[/tex]
[tex] = \frac{17}{2} in[/tex]
The width of the rectangle is
[tex]3 \frac{1}{4} [/tex]
[tex] = \frac{13}{4} in.[/tex]
The ratio of length to width is:
[tex] \frac{17}{2} : \frac{13}{4} [/tex]
We multiply each term in the ratio by
4
[tex]\frac{17}{2} \times 4: \frac{13}{4} \times 4[/tex]
[tex]34 : 13[/tex]