Ratio and Proportion II


   
 
Summary
Ratio is the numerical relationship between two quantities of the same kind. The first quantity is called the antecedent and the second quantity is called the consequent.
 
By performing simple operations on ratios, we get compounded ratio, duplicate ratio, triplicate ratio, sub-duplicate ratio and sub-triplicate ratio.
 
If two ratios are equal, we get four quantities in proportion.
 
If three quantities are in continued proportion, the second quantity is called the mean proportion.
 
Important results in proportions are: Invertendo, Alternendo, Componendo, Dividendo and Componendo and Dividendo.
 
 
     
   
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