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Finding the Fourth Proportional to 18,646,502.55, 27,969,753.83 and 18,646,502.55

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Solution

The fourth proportional to 18,646,502.55, 27,969,753.83 and 18,646,502.55 is: 27,969,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646,502.55 : 27,969,753.83 = 18,646,502.55 : x
  2. Step 2: Convert to fraction form
    18,646,502.55/27,969,753.83 = 18,646,502.55/x
  3. Step 3: Cross multiply
    18,646,502.55x = 27,969,753.83 × 18,646,502.55
  4. Step 4: Simplify right side
    18,646,502.55x = 521,538,086,020,734.75
  5. Step 5: Solve for x
    x = 521,538,086,020,734.75/18,646,502.55
  6. Step 6: Final answer
    x = 27,969,753.83

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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.