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Finding the Fourth Proportional to 6,311.62, 8,709.02 and 3,793.13

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Solution

The fourth proportional to 6,311.62, 8,709.02 and 3,793.13 is: 5,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.62 : 8,709.02 = 3,793.13 : x
  2. Step 2: Convert to fraction form
    6,311.62/8,709.02 = 3,793.13/x
  3. Step 3: Cross multiply
    6,311.62x = 8,709.02 × 3,793.13
  4. Step 4: Simplify right side
    6,311.62x = 33,034,429.40
  5. Step 5: Solve for x
    x = 33,034,429.40/6,311.62
  6. Step 6: Final answer
    x = 5,233.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.