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Finding the Fourth Proportional to 7,407,520.80, 10,377,615 and 7,407,520.80

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Solution

The fourth proportional to 7,407,520.80, 10,377,615 and 7,407,520.80 is: 10,377,615

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407,520.80 : 10,377,615 = 7,407,520.80 : x
  2. Step 2: Convert to fraction form
    7,407,520.80/10,377,615 = 7,407,520.80/x
  3. Step 3: Cross multiply
    7,407,520.80x = 10,377,615 × 7,407,520.80
  4. Step 4: Simplify right side
    7,407,520.80x = 76,872,398,966,892
  5. Step 5: Solve for x
    x = 76,872,398,966,892/7,407,520.80
  6. Step 6: Final answer
    x = 10,377,615

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.