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Finding the Fourth Proportional to 6,704.70, 9,252.18 and 3,720.50

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Solution

The fourth proportional to 6,704.70, 9,252.18 and 3,720.50 is: 5,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,704.70 : 9,252.18 = 3,720.50 : x
  2. Step 2: Convert to fraction form
    6,704.70/9,252.18 = 3,720.50/x
  3. Step 3: Cross multiply
    6,704.70x = 9,252.18 × 3,720.50
  4. Step 4: Simplify right side
    6,704.70x = 34,422,735.69
  5. Step 5: Solve for x
    x = 34,422,735.69/6,704.70
  6. Step 6: Final answer
    x = 5,134.12

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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.