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Finding the Fourth Proportional to 29,472.98, 40,672.80 and 16,044.08

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Solution

The fourth proportional to 29,472.98, 40,672.80 and 16,044.08 is: 22,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,472.98 : 40,672.80 = 16,044.08 : x
  2. Step 2: Convert to fraction form
    29,472.98/40,672.80 = 16,044.08/x
  3. Step 3: Cross multiply
    29,472.98x = 40,672.80 × 16,044.08
  4. Step 4: Simplify right side
    29,472.98x = 652,557,453.66
  5. Step 5: Solve for x
    x = 652,557,453.66/29,472.98
  6. Step 6: Final answer
    x = 22,140.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.