How to use proportions and direct variation to solve for x

The video tutorial explains how to solve problems involving direct variation, where Y varies directly with X. It demonstrates setting up equations, using the cross product method, simplifying fractions, and multiplying by the reciprocal to find missing values. The tutorial emphasizes understanding the relationship between variables and the mathematical operations involved.

What is the relationship between Y and X in direct variation?

How do you set up the equations for direct variation when given values for Y and X?

Explain the process of using cross products to solve for X in a direct variation problem.

Describe how to simplify fractions when solving direct variation problems.

What is the significance of multiplying by the reciprocal when solving for a variable?