proportions are nothing but equivalent fractions...so if ur fractions are equivalent, then they are proportionate.
b(2,3,8,9,14).....c(4,6,16,18,28)..so our sets of points are : (2,4)(3,6)(8,16)(9,18)(14,28)
so put b/c or c/b...it does not matter
and we have : 4/2, 6/3, 16/8, 18/9, 28/14...all of these reduce to 2....these are all equivalent fractions...so this is proportionate
so ur answer is : b and c are proportionate
