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Finding the Fourth Proportional to 6,472.70, 9,711.17 and 2,090.19

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Solution

The fourth proportional to 6,472.70, 9,711.17 and 2,090.19 is: 3,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472.70 : 9,711.17 = 2,090.19 : x
  2. Step 2: Convert to fraction form
    6,472.70/9,711.17 = 2,090.19/x
  3. Step 3: Cross multiply
    6,472.70x = 9,711.17 × 2,090.19
  4. Step 4: Simplify right side
    6,472.70x = 20,298,190.42
  5. Step 5: Solve for x
    x = 20,298,190.42/6,472.70
  6. Step 6: Final answer
    x = 3,135.97

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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.