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Finding the Fourth Proportional to 16,290.84, 22,481.28 and 8,838.84

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Solution

The fourth proportional to 16,290.84, 22,481.28 and 8,838.84 is: 12,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.84 : 22,481.28 = 8,838.84 : x
  2. Step 2: Convert to fraction form
    16,290.84/22,481.28 = 8,838.84/x
  3. Step 3: Cross multiply
    16,290.84x = 22,481.28 × 8,838.84
  4. Step 4: Simplify right side
    16,290.84x = 198,708,436.92
  5. Step 5: Solve for x
    x = 198,708,436.92/16,290.84
  6. Step 6: Final answer
    x = 12,197.56

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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.