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Finding the Fourth Proportional to 6,704.80, 9,251.86 and 3,719.88

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Solution

The fourth proportional to 6,704.80, 9,251.86 and 3,719.88 is: 5,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,704.80 : 9,251.86 = 3,719.88 : x
  2. Step 2: Convert to fraction form
    6,704.80/9,251.86 = 3,719.88/x
  3. Step 3: Cross multiply
    6,704.80x = 9,251.86 × 3,719.88
  4. Step 4: Simplify right side
    6,704.80x = 34,415,808.98
  5. Step 5: Solve for x
    x = 34,415,808.98/6,704.80
  6. Step 6: Final answer
    x = 5,133.01

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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.