Out of the 32 students in Mr. Martins class,18 are boys. If this ratio is proportional to the ratio of students in the school and the number of boys in the school, which of the following proportions would best be used to find the number of students in the school? It is given that there are 468 boys in the school.
Since the ratio of boys in Mr. Martin's class is given as 18 boys out of 32 students, we can set up a proportion with the total number of boys in the school (468) to find the total number of students in the school.
Let x be the total number of students in the school, then:
18/32 = 468/x
Cross multiplying gives:
18x = 32 * 468
18x = 14976
Dividing by 18 gives:
x = 832
Therefore, the number of students in the school is 832.