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Finding the Fourth Proportional to 6,080.70, 9,121.80 and 2,748.42

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Solution

The fourth proportional to 6,080.70, 9,121.80 and 2,748.42 is: 4,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,080.70 : 9,121.80 = 2,748.42 : x
  2. Step 2: Convert to fraction form
    6,080.70/9,121.80 = 2,748.42/x
  3. Step 3: Cross multiply
    6,080.70x = 9,121.80 × 2,748.42
  4. Step 4: Simplify right side
    6,080.70x = 25,070,537.56
  5. Step 5: Solve for x
    x = 25,070,537.56/6,080.70
  6. Step 6: Final answer
    x = 4,122.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.