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Finding the Fourth Proportional to 22,472.64, 33,553.44 and 21,072.96

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Solution

The fourth proportional to 22,472.64, 33,553.44 and 21,072.96 is: 31,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,472.64 : 33,553.44 = 21,072.96 : x
  2. Step 2: Convert to fraction form
    22,472.64/33,553.44 = 21,072.96/x
  3. Step 3: Cross multiply
    22,472.64x = 33,553.44 × 21,072.96
  4. Step 4: Simplify right side
    22,472.64x = 707,070,298.98
  5. Step 5: Solve for x
    x = 707,070,298.98/22,472.64
  6. Step 6: Final answer
    x = 31,463.61

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.