Question

Is the rate 3/4 cup butter/6 eggs = 9 cups of butter/ 73 eggs equivalent to the rate?

is it yes

Answer 1

cross multiply and see for yourself.
(3/4)/6=9/73
(3/4)(73)=(9)(4)

if they are equal, then yes, then equivalent to rate

Answer 2

21/27= 7/9