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Finding the Fourth Proportional to 8,169.59, 12,251.96 and 2,974.25

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Solution

The fourth proportional to 8,169.59, 12,251.96 and 2,974.25 is: 4,460.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.59 : 12,251.96 = 2,974.25 : x
  2. Step 2: Convert to fraction form
    8,169.59/12,251.96 = 2,974.25/x
  3. Step 3: Cross multiply
    8,169.59x = 12,251.96 × 2,974.25
  4. Step 4: Simplify right side
    8,169.59x = 36,440,377.16
  5. Step 5: Solve for x
    x = 36,440,377.16/8,169.59
  6. Step 6: Final answer
    x = 4,460.49

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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.