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Finding the Fourth Proportional to 8,568.43, 12,817.10 and 8,043.55

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Solution

The fourth proportional to 8,568.43, 12,817.10 and 8,043.55 is: 12,031.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.43 : 12,817.10 = 8,043.55 : x
  2. Step 2: Convert to fraction form
    8,568.43/12,817.10 = 8,043.55/x
  3. Step 3: Cross multiply
    8,568.43x = 12,817.10 × 8,043.55
  4. Step 4: Simplify right side
    8,568.43x = 103,094,920.62
  5. Step 5: Solve for x
    x = 103,094,920.62/8,568.43
  6. Step 6: Final answer
    x = 12,031.96

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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.