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Finding the Fourth Proportional to 54,503.76, 81,754.80 and 15,060

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Solution

The fourth proportional to 54,503.76, 81,754.80 and 15,060 is: 22,589.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,503.76 : 81,754.80 = 15,060 : x
  2. Step 2: Convert to fraction form
    54,503.76/81,754.80 = 15,060/x
  3. Step 3: Cross multiply
    54,503.76x = 81,754.80 × 15,060
  4. Step 4: Simplify right side
    54,503.76x = 1,231,227,288
  5. Step 5: Solve for x
    x = 1,231,227,288/54,503.76
  6. Step 6: Final answer
    x = 22,589.77

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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.