A train is traveling at a constant speed and has traveled 67.5 miles in the last \( 1 \frac{1}{2} \) hours. Which equation shows the proportional relationship between the distance, \( d \), and the time, \( t \), that the train has traveled?
\( d=69 t \)
\( d=67.5 t \)
\( d=50 t \)
\( d=45 t \)
Done