x 解比例 x
28:
x
=:8:1 6:16=15:
x
5
11
:
4
5
=
5
22
:
x
x
36
=
3
52
16:4=
x
:18
x
:8=0.125:0.25
3
x
=
4
6.0
3
1
:
5
2
=
x
:
4
3
x :25=25:4 3.75:0.25=x :4
8.5∶ =4∶12
4.6
x
=
2
3
10∶
4
1
= ∶
5
1
1.2∶3=
5
2
∶ ∶1.5=2∶0.3
4
3
∶0.5=
5
4
∶ x
x :1.3=3.2 : 0.39 5.4 :1.8=x : 1.5 6 :15= x : 20
5
3
:
x
=
10
3
:
2
1
8
5
:
10
9
=
9
5
:
x
5
3
:
x
=
7
3
:
10
1
0.35:
2
1
=
x
: 0.25 8 :
x
=
3
1
:
16
1
3
1
:
5
2
=4 :
x
40
24
=
10
x
15
7
=
75
x
x
5.0
=
6
75.0
4
x
=
5
80
7.2 :12=
9
1
:
x
1.5 :2.5=6 :
x x
:1.3=3.2 : 0.39 5.4 :1.8=
x
: 1.5 6 :15=
x
: 20
5
3
:
x
=
10
3
:
2
1
2
1
:
4
1
= x
:
20
1
5.2
4.2
=
15
x
4
3
: x =15 :
8
5
x :20%=2:
4
1