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Finding the Fourth Proportional to 22,818.59, 31,488.92 and 13,259.27

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Solution

The fourth proportional to 22,818.59, 31,488.92 and 13,259.27 is: 18,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,818.59 : 31,488.92 = 13,259.27 : x
  2. Step 2: Convert to fraction form
    22,818.59/31,488.92 = 13,259.27/x
  3. Step 3: Cross multiply
    22,818.59x = 31,488.92 × 13,259.27
  4. Step 4: Simplify right side
    22,818.59x = 417,520,092.29
  5. Step 5: Solve for x
    x = 417,520,092.29/22,818.59
  6. Step 6: Final answer
    x = 18,297.37

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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.