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Finding the Fourth Proportional to 39,500.91, 59,249.49 and 9,918.09

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Solution

The fourth proportional to 39,500.91, 59,249.49 and 9,918.09 is: 14,876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,500.91 : 59,249.49 = 9,918.09 : x
  2. Step 2: Convert to fraction form
    39,500.91/59,249.49 = 9,918.09/x
  3. Step 3: Cross multiply
    39,500.91x = 59,249.49 × 9,918.09
  4. Step 4: Simplify right side
    39,500.91x = 587,641,774.27
  5. Step 5: Solve for x
    x = 587,641,774.27/39,500.91
  6. Step 6: Final answer
    x = 14,876.66

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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.