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Finding the Fourth Proportional to 6,704.42, 9,251.97 and 3,720.20

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Solution

The fourth proportional to 6,704.42, 9,251.97 and 3,720.20 is: 5,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,704.42 : 9,251.97 = 3,720.20 : x
  2. Step 2: Convert to fraction form
    6,704.42/9,251.97 = 3,720.20/x
  3. Step 3: Cross multiply
    6,704.42x = 9,251.97 × 3,720.20
  4. Step 4: Simplify right side
    6,704.42x = 34,419,132.53
  5. Step 5: Solve for x
    x = 34,419,132.53/6,704.42
  6. Step 6: Final answer
    x = 5,133.80

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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.