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Finding the Fourth Proportional to 22,660.80, 33,991.24 and 8,617.52

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Solution

The fourth proportional to 22,660.80, 33,991.24 and 8,617.52 is: 12,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.80 : 33,991.24 = 8,617.52 : x
  2. Step 2: Convert to fraction form
    22,660.80/33,991.24 = 8,617.52/x
  3. Step 3: Cross multiply
    22,660.80x = 33,991.24 × 8,617.52
  4. Step 4: Simplify right side
    22,660.80x = 292,920,190.52
  5. Step 5: Solve for x
    x = 292,920,190.52/22,660.80
  6. Step 6: Final answer
    x = 12,926.30

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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.