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Finding the Fourth Proportional to 33,147.03, 49,720.49 and 9,789.87

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Solution

The fourth proportional to 33,147.03, 49,720.49 and 9,789.87 is: 14,684.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,147.03 : 49,720.49 = 9,789.87 : x
  2. Step 2: Convert to fraction form
    33,147.03/49,720.49 = 9,789.87/x
  3. Step 3: Cross multiply
    33,147.03x = 49,720.49 × 9,789.87
  4. Step 4: Simplify right side
    33,147.03x = 486,757,084.49
  5. Step 5: Solve for x
    x = 486,757,084.49/33,147.03
  6. Step 6: Final answer
    x = 14,684.79

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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.