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Finding the Fourth Proportional to 22,261.87, 33,393.84 and 12,393.71

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Solution

The fourth proportional to 22,261.87, 33,393.84 and 12,393.71 is: 18,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.87 : 33,393.84 = 12,393.71 : x
  2. Step 2: Convert to fraction form
    22,261.87/33,393.84 = 12,393.71/x
  3. Step 3: Cross multiply
    22,261.87x = 33,393.84 × 12,393.71
  4. Step 4: Simplify right side
    22,261.87x = 413,873,568.75
  5. Step 5: Solve for x
    x = 413,873,568.75/22,261.87
  6. Step 6: Final answer
    x = 18,591.14

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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.