Then FG/BD=AF/AB, FG/DC=EF/EC.
Because d is the midpoint of BC, BD=DC,
So AF/AB=EF/EC,
Because EC= 1/4CF,
So EF=3/4CF,
So EF/EC=3/ 1,
So AF/AB=3/ 1.
So the position of F is on the extension line of AB, AE=3AB.
(2) The value of AF/AB is 3/ 1.