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Finding the Fourth Proportional to 22,192.17, 33,288.54 and 12,393.78

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Solution

The fourth proportional to 22,192.17, 33,288.54 and 12,393.78 is: 18,590.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,192.17 : 33,288.54 = 12,393.78 : x
  2. Step 2: Convert to fraction form
    22,192.17/33,288.54 = 12,393.78/x
  3. Step 3: Cross multiply
    22,192.17x = 33,288.54 × 12,393.78
  4. Step 4: Simplify right side
    22,192.17x = 412,570,841.28
  5. Step 5: Solve for x
    x = 412,570,841.28/22,192.17
  6. Step 6: Final answer
    x = 18,590.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.