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Finding the Fourth Proportional to 8,167.70, 12,251.55 and 5,575.70

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Solution

The fourth proportional to 8,167.70, 12,251.55 and 5,575.70 is: 8,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.70 : 12,251.55 = 5,575.70 : x
  2. Step 2: Convert to fraction form
    8,167.70/12,251.55 = 5,575.70/x
  3. Step 3: Cross multiply
    8,167.70x = 12,251.55 × 5,575.70
  4. Step 4: Simplify right side
    8,167.70x = 68,310,967.34
  5. Step 5: Solve for x
    x = 68,310,967.34/8,167.70
  6. Step 6: Final answer
    x = 8,363.55

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Half scale
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Similar ratio
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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.