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Finding the Fourth Proportional to 8,597.20, 12,874.20 and 6,869.20

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Solution

The fourth proportional to 8,597.20, 12,874.20 and 6,869.20 is: 10,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.20 : 12,874.20 = 6,869.20 : x
  2. Step 2: Convert to fraction form
    8,597.20/12,874.20 = 6,869.20/x
  3. Step 3: Cross multiply
    8,597.20x = 12,874.20 × 6,869.20
  4. Step 4: Simplify right side
    8,597.20x = 88,435,454.64
  5. Step 5: Solve for x
    x = 88,435,454.64/8,597.20
  6. Step 6: Final answer
    x = 10,286.54

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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.