If a:b: :b:c then a,b,c are in _______

If a:b=4:5 and b:c=2:3, then a:c=

If a:b = 2:3 and b:c = 3:4, then a:c = _____.

If a,b,c are three unequal numbers such that a,b,c are in A.P. and (b-a) ,. (c-b) ,a are in G.P., then the value of a:b: c is-

If a:b=2:3 and b:c=5:7 then find a:c and a:b:c

If abs((a,b,a-b),(b,c,b-c),(2,1,0))=0 , then prove that a,b,c are in GP.

Assuming that x is a positive real number and a,b,c are rational numbers,show that: ((x^(a))/(x^(b)))^(a)-2+ab+b^(2)((x^(b))/(x^(c)))^(b)-2+bc+c^(2)((x^(c))/(x^(a)))^(c)-2+ca+a^(2)=1

If a:b = 4:5 and b:c = 2:3, then a:c=_____.