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Finding the Fourth Proportional to 54,557.66, 81,836.16 and 14,031.11

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Solution

The fourth proportional to 54,557.66, 81,836.16 and 14,031.11 is: 21,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,557.66 : 81,836.16 = 14,031.11 : x
  2. Step 2: Convert to fraction form
    54,557.66/81,836.16 = 14,031.11/x
  3. Step 3: Cross multiply
    54,557.66x = 81,836.16 × 14,031.11
  4. Step 4: Simplify right side
    54,557.66x = 1,148,251,753.76
  5. Step 5: Solve for x
    x = 1,148,251,753.76/54,557.66
  6. Step 6: Final answer
    x = 21,046.57

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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.