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Finding the Fourth Proportional to 6,679.87, 9,218.07 and 3,695.83

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Solution

The fourth proportional to 6,679.87, 9,218.07 and 3,695.83 is: 5,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.87 : 9,218.07 = 3,695.83 : x
  2. Step 2: Convert to fraction form
    6,679.87/9,218.07 = 3,695.83/x
  3. Step 3: Cross multiply
    6,679.87x = 9,218.07 × 3,695.83
  4. Step 4: Simplify right side
    6,679.87x = 34,068,396.60
  5. Step 5: Solve for x
    x = 34,068,396.60/6,679.87
  6. Step 6: Final answer
    x = 5,100.16

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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.