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Finding the Fourth Proportional to 6,472,714.70, 9,711,404.85 and 2,688,913.10

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Solution

The fourth proportional to 6,472,714.70, 9,711,404.85 and 2,688,913.10 is: 4,034,338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472,714.70 : 9,711,404.85 = 2,688,913.10 : x
  2. Step 2: Convert to fraction form
    6,472,714.70/9,711,404.85 = 2,688,913.10/x
  3. Step 3: Cross multiply
    6,472,714.70x = 9,711,404.85 × 2,688,913.10
  4. Step 4: Simplify right side
    6,472,714.70x = 26,113,123,720,568.54
  5. Step 5: Solve for x
    x = 26,113,123,720,568.54/6,472,714.70
  6. Step 6: Final answer
    x = 4,034,338.75

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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.