According to the information given in the exercise, Harries won by the following ratio:
[tex]5\colon4_{}[/tex]A ratio can be also written as a fraction. Then you can rewrite it in this form:
[tex]\frac{5}{4}[/tex]Knowing the ratio, you can determine that:
[tex]36,000votes\rightarrow5+4[/tex]Then:
[tex]36,000votes\rightarrow9[/tex]Notice that the value 9 is obtained by adding the numerator and the denominator of the fraction.
Now you can set up the following proportion:
[tex]\frac{36,000}{9}=\frac{h}{5}[/tex]Where "h" is the number of votes cast for Harris.
Solving for "h", you get:
[tex]undefined[/tex]