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Finding the Fourth Proportional to 33,691.61, 50,546.06 and 12,631.94

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Solution

The fourth proportional to 33,691.61, 50,546.06 and 12,631.94 is: 18,951.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,691.61 : 50,546.06 = 12,631.94 : x
  2. Step 2: Convert to fraction form
    33,691.61/50,546.06 = 12,631.94/x
  3. Step 3: Cross multiply
    33,691.61x = 50,546.06 × 12,631.94
  4. Step 4: Simplify right side
    33,691.61x = 638,494,481.27
  5. Step 5: Solve for x
    x = 638,494,481.27/33,691.61
  6. Step 6: Final answer
    x = 18,951.14

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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.