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Finding the Fourth Proportional to 54,607.38, 81,912.87 and 15,164.88

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Solution

The fourth proportional to 54,607.38, 81,912.87 and 15,164.88 is: 22,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,607.38 : 81,912.87 = 15,164.88 : x
  2. Step 2: Convert to fraction form
    54,607.38/81,912.87 = 15,164.88/x
  3. Step 3: Cross multiply
    54,607.38x = 81,912.87 × 15,164.88
  4. Step 4: Simplify right side
    54,607.38x = 1,242,198,844.01
  5. Step 5: Solve for x
    x = 1,242,198,844.01/54,607.38
  6. Step 6: Final answer
    x = 22,747.82

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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.