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Finding the Fourth Proportional to 19,744.92, 29,622.23 and 13,912.92

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Solution

The fourth proportional to 19,744.92, 29,622.23 and 13,912.92 is: 20,872.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,744.92 : 29,622.23 = 13,912.92 : x
  2. Step 2: Convert to fraction form
    19,744.92/29,622.23 = 13,912.92/x
  3. Step 3: Cross multiply
    19,744.92x = 29,622.23 × 13,912.92
  4. Step 4: Simplify right side
    19,744.92x = 412,131,646.65
  5. Step 5: Solve for x
    x = 412,131,646.65/19,744.92
  6. Step 6: Final answer
    x = 20,872.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.