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Finding the Fourth Proportional to 18,122.43, 24,996.31 and 17,512.82

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Solution

The fourth proportional to 18,122.43, 24,996.31 and 17,512.82 is: 24,155.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.43 : 24,996.31 = 17,512.82 : x
  2. Step 2: Convert to fraction form
    18,122.43/24,996.31 = 17,512.82/x
  3. Step 3: Cross multiply
    18,122.43x = 24,996.31 × 17,512.82
  4. Step 4: Simplify right side
    18,122.43x = 437,755,877.69
  5. Step 5: Solve for x
    x = 437,755,877.69/18,122.43
  6. Step 6: Final answer
    x = 24,155.47

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