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Finding the Fourth Proportional to 16,137.73, 22,269.92 and 8,869.90

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Solution

The fourth proportional to 16,137.73, 22,269.92 and 8,869.90 is: 12,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,137.73 : 22,269.92 = 8,869.90 : x
  2. Step 2: Convert to fraction form
    16,137.73/22,269.92 = 8,869.90/x
  3. Step 3: Cross multiply
    16,137.73x = 22,269.92 × 8,869.90
  4. Step 4: Simplify right side
    16,137.73x = 197,531,963.41
  5. Step 5: Solve for x
    x = 197,531,963.41/16,137.73
  6. Step 6: Final answer
    x = 12,240.38

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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.