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Finding the Fourth Proportional to 6,507,957.76, 8,981,414.02 and 3,607,470.88

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Solution

The fourth proportional to 6,507,957.76, 8,981,414.02 and 3,607,470.88 is: 4,978,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507,957.76 : 8,981,414.02 = 3,607,470.88 : x
  2. Step 2: Convert to fraction form
    6,507,957.76/8,981,414.02 = 3,607,470.88/x
  3. Step 3: Cross multiply
    6,507,957.76x = 8,981,414.02 × 3,607,470.88
  4. Step 4: Simplify right side
    6,507,957.76x = 32,400,189,538,373.73
  5. Step 5: Solve for x
    x = 32,400,189,538,373.73/6,507,957.76
  6. Step 6: Final answer
    x = 4,978,549.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.