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Finding the Fourth Proportional to 22,349.97, 30,843.15 and 12,278.63

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Solution

The fourth proportional to 22,349.97, 30,843.15 and 12,278.63 is: 16,944.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,349.97 : 30,843.15 = 12,278.63 : x
  2. Step 2: Convert to fraction form
    22,349.97/30,843.15 = 12,278.63/x
  3. Step 3: Cross multiply
    22,349.97x = 30,843.15 × 12,278.63
  4. Step 4: Simplify right side
    22,349.97x = 378,711,626.88
  5. Step 5: Solve for x
    x = 378,711,626.88/22,349.97
  6. Step 6: Final answer
    x = 16,944.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.