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Finding the Fourth Proportional to 8,951.44, 12,349.80 and 5,591.92

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Solution

The fourth proportional to 8,951.44, 12,349.80 and 5,591.92 is: 7,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.44 : 12,349.80 = 5,591.92 : x
  2. Step 2: Convert to fraction form
    8,951.44/12,349.80 = 5,591.92/x
  3. Step 3: Cross multiply
    8,951.44x = 12,349.80 × 5,591.92
  4. Step 4: Simplify right side
    8,951.44x = 69,059,093.62
  5. Step 5: Solve for x
    x = 69,059,093.62/8,951.44
  6. Step 6: Final answer
    x = 7,714.86

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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.