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Finding the Fourth Proportional to 22,490.28, 33,748.86 and 8,650.92

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Solution

The fourth proportional to 22,490.28, 33,748.86 and 8,650.92 is: 12,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,490.28 : 33,748.86 = 8,650.92 : x
  2. Step 2: Convert to fraction form
    22,490.28/33,748.86 = 8,650.92/x
  3. Step 3: Cross multiply
    22,490.28x = 33,748.86 × 8,650.92
  4. Step 4: Simplify right side
    22,490.28x = 291,958,687.95
  5. Step 5: Solve for x
    x = 291,958,687.95/22,490.28
  6. Step 6: Final answer
    x = 12,981.55

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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.