In a proportion the product of means is equal to the product of __________.
In a proportion, the ___________ of means is equal to the product of extremes.
In a proportion, the product of ……………… is equal to the product of means.
When four quantities are in proportion then the product of extreme terms is equal to the product of means
The product of means in a proportion is 60. If one of the extremes is 4, then the other is 20.
