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Finding the Fourth Proportional to 3,952.74, 5,932.70 and 2,105.43

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Solution

The fourth proportional to 3,952.74, 5,932.70 and 2,105.43 is: 3,160.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.74 : 5,932.70 = 2,105.43 : x
  2. Step 2: Convert to fraction form
    3,952.74/5,932.70 = 2,105.43/x
  3. Step 3: Cross multiply
    3,952.74x = 5,932.70 × 2,105.43
  4. Step 4: Simplify right side
    3,952.74x = 12,490,884.56
  5. Step 5: Solve for x
    x = 12,490,884.56/3,952.74
  6. Step 6: Final answer
    x = 3,160.06

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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.