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Finding the Fourth Proportional to 6,679.30, 9,217.16 and 3,694.90

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Solution

The fourth proportional to 6,679.30, 9,217.16 and 3,694.90 is: 5,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.30 : 9,217.16 = 3,694.90 : x
  2. Step 2: Convert to fraction form
    6,679.30/9,217.16 = 3,694.90/x
  3. Step 3: Cross multiply
    6,679.30x = 9,217.16 × 3,694.90
  4. Step 4: Simplify right side
    6,679.30x = 34,056,484.48
  5. Step 5: Solve for x
    x = 34,056,484.48/6,679.30
  6. Step 6: Final answer
    x = 5,098.81

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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.