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Finding the Fourth Proportional to 5,859,785.80, 8,784,429.90 and 3,838,997.80

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Solution

The fourth proportional to 5,859,785.80, 8,784,429.90 and 3,838,997.80 is: 5,755,057.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859,785.80 : 8,784,429.90 = 3,838,997.80 : x
  2. Step 2: Convert to fraction form
    5,859,785.80/8,784,429.90 = 3,838,997.80/x
  3. Step 3: Cross multiply
    5,859,785.80x = 8,784,429.90 × 3,838,997.80
  4. Step 4: Simplify right side
    5,859,785.80x = 33,723,407,060,354.22
  5. Step 5: Solve for x
    x = 33,723,407,060,354.22/5,859,785.80
  6. Step 6: Final answer
    x = 5,755,057.99

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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.