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Finding the Fourth Proportional to 5,812,553.80, 8,717,793.90 and 3,678,819.40

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Solution

The fourth proportional to 5,812,553.80, 8,717,793.90 and 3,678,819.40 is: 5,517,572.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812,553.80 : 8,717,793.90 = 3,678,819.40 : x
  2. Step 2: Convert to fraction form
    5,812,553.80/8,717,793.90 = 3,678,819.40/x
  3. Step 3: Cross multiply
    5,812,553.80x = 8,717,793.90 × 3,678,819.40
  4. Step 4: Simplify right side
    5,812,553.80x = 32,071,189,324,521.66
  5. Step 5: Solve for x
    x = 32,071,189,324,521.66/5,812,553.80
  6. Step 6: Final answer
    x = 5,517,572.90

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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.