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Finding the Fourth Proportional to 22,651.55, 33,963.87 and 8,612.61

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Solution

The fourth proportional to 22,651.55, 33,963.87 and 8,612.61 is: 12,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,651.55 : 33,963.87 = 8,612.61 : x
  2. Step 2: Convert to fraction form
    22,651.55/33,963.87 = 8,612.61/x
  3. Step 3: Cross multiply
    22,651.55x = 33,963.87 × 8,612.61
  4. Step 4: Simplify right side
    22,651.55x = 292,517,439.04
  5. Step 5: Solve for x
    x = 292,517,439.04/22,651.55
  6. Step 6: Final answer
    x = 12,913.79

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1.5x scale

Why These Related Problems?

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