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Finding the Fourth Proportional to 8,463.42, 12,691.89 and 4,996.62

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Solution

The fourth proportional to 8,463.42, 12,691.89 and 4,996.62 is: 7,493.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.42 : 12,691.89 = 4,996.62 : x
  2. Step 2: Convert to fraction form
    8,463.42/12,691.89 = 4,996.62/x
  3. Step 3: Cross multiply
    8,463.42x = 12,691.89 × 4,996.62
  4. Step 4: Simplify right side
    8,463.42x = 63,416,551.41
  5. Step 5: Solve for x
    x = 63,416,551.41/8,463.42
  6. Step 6: Final answer
    x = 7,493.02

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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.