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Finding the Fourth Proportional to 29,680.61, 40,959.22 and 16,251.86

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Solution

The fourth proportional to 29,680.61, 40,959.22 and 16,251.86 is: 22,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,680.61 : 40,959.22 = 16,251.86 : x
  2. Step 2: Convert to fraction form
    29,680.61/40,959.22 = 16,251.86/x
  3. Step 3: Cross multiply
    29,680.61x = 40,959.22 × 16,251.86
  4. Step 4: Simplify right side
    29,680.61x = 665,663,509.15
  5. Step 5: Solve for x
    x = 665,663,509.15/29,680.61
  6. Step 6: Final answer
    x = 22,427.55

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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.