Verified answer

х : 6,3 = 2 1/7 : 1,25                   4 4/5 : 0,8 = х : 1 1/6

1,25х = 63/10 * 15/7                   0,8х = 24/5 * 7/6

1,25х = 27/2                               0,8х = 28/5 

1,25х = 13,5                               0,8х = 5,6

х = 13,5 : 1,25                            х = 5,6 : 0,8

х = 10,8                                      х = 7