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Finding the Fourth Proportional to 54,598.80, 81,898.16 and 15,155.90

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Solution

The fourth proportional to 54,598.80, 81,898.16 and 15,155.90 is: 22,733.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,598.80 : 81,898.16 = 15,155.90 : x
  2. Step 2: Convert to fraction form
    54,598.80/81,898.16 = 15,155.90/x
  3. Step 3: Cross multiply
    54,598.80x = 81,898.16 × 15,155.90
  4. Step 4: Simplify right side
    54,598.80x = 1,241,239,837.87
  5. Step 5: Solve for x
    x = 1,241,239,837.87/54,598.80
  6. Step 6: Final answer
    x = 22,733.83

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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.