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Finding the Fourth Proportional to 5,720,007.90, 8,581,163.85 and 1,676,487.90

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Solution

The fourth proportional to 5,720,007.90, 8,581,163.85 and 1,676,487.90 is: 2,515,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720,007.90 : 8,581,163.85 = 1,676,487.90 : x
  2. Step 2: Convert to fraction form
    5,720,007.90/8,581,163.85 = 1,676,487.90/x
  3. Step 3: Cross multiply
    5,720,007.90x = 8,581,163.85 × 1,676,487.90
  4. Step 4: Simplify right side
    5,720,007.90x = 14,386,217,362,442.41
  5. Step 5: Solve for x
    x = 14,386,217,362,442.41/5,720,007.90
  6. Step 6: Final answer
    x = 2,515,069.49

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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.