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Finding the Third Proportional to 7,399.13 and 9,984.38

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Solution

The third proportional to 7,399.13 and 9,984.38 is: 13,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.13 : 9,984.38 = 9,984.38 : x
  2. Step 2: Convert to fraction form
    7,399.13/9,984.38 = 9,984.38/x
  3. Step 3: Cross multiply
    7,399.13x = 9,984.38 × 9,984.38
  4. Step 4: Simplify right side
    7,399.13x = 99,687,744.14
  5. Step 5: Solve for x
    x = 99,687,744.14/7,399.13
  6. Step 6: Final answer
    x = 13,472.91

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.