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Finding the Fourth Proportional to 22,208.82, 30,644.52 and 13,132.92

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Solution

The fourth proportional to 22,208.82, 30,644.52 and 13,132.92 is: 18,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,208.82 : 30,644.52 = 13,132.92 : x
  2. Step 2: Convert to fraction form
    22,208.82/30,644.52 = 13,132.92/x
  3. Step 3: Cross multiply
    22,208.82x = 30,644.52 × 13,132.92
  4. Step 4: Simplify right side
    22,208.82x = 402,452,029.60
  5. Step 5: Solve for x
    x = 402,452,029.60/22,208.82
  6. Step 6: Final answer
    x = 18,121.27

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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.