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Finding the Fourth Proportional to 3,952.33, 5,926.49 and 1,318.92

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Solution

The fourth proportional to 3,952.33, 5,926.49 and 1,318.92 is: 1,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.33 : 5,926.49 = 1,318.92 : x
  2. Step 2: Convert to fraction form
    3,952.33/5,926.49 = 1,318.92/x
  3. Step 3: Cross multiply
    3,952.33x = 5,926.49 × 1,318.92
  4. Step 4: Simplify right side
    3,952.33x = 7,816,536.56
  5. Step 5: Solve for x
    x = 7,816,536.56/3,952.33
  6. Step 6: Final answer
    x = 1,977.71

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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.