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Finding the Fourth Proportional to 8,375.10, 12,568.77 and 4,213.98

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Solution

The fourth proportional to 8,375.10, 12,568.77 and 4,213.98 is: 6,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.10 : 12,568.77 = 4,213.98 : x
  2. Step 2: Convert to fraction form
    8,375.10/12,568.77 = 4,213.98/x
  3. Step 3: Cross multiply
    8,375.10x = 12,568.77 × 4,213.98
  4. Step 4: Simplify right side
    8,375.10x = 52,964,545.40
  5. Step 5: Solve for x
    x = 52,964,545.40/8,375.10
  6. Step 6: Final answer
    x = 6,324.05

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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.