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Finding the Fourth Proportional to 5,837,687.60, 8,732,911.80 and 5,129,099.60

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Solution

The fourth proportional to 5,837,687.60, 8,732,911.80 and 5,129,099.60 is: 7,672,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,837,687.60 : 8,732,911.80 = 5,129,099.60 : x
  2. Step 2: Convert to fraction form
    5,837,687.60/8,732,911.80 = 5,129,099.60/x
  3. Step 3: Cross multiply
    5,837,687.60x = 8,732,911.80 × 5,129,099.60
  4. Step 4: Simplify right side
    5,837,687.60x = 44,791,974,420,215.28
  5. Step 5: Solve for x
    x = 44,791,974,420,215.28/5,837,687.60
  6. Step 6: Final answer
    x = 7,672,896.79

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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.