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Finding the Fourth Proportional to 3,963.54, 5,936.79 and 2,318.46

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Solution

The fourth proportional to 3,963.54, 5,936.79 and 2,318.46 is: 3,472.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.54 : 5,936.79 = 2,318.46 : x
  2. Step 2: Convert to fraction form
    3,963.54/5,936.79 = 2,318.46/x
  3. Step 3: Cross multiply
    3,963.54x = 5,936.79 × 2,318.46
  4. Step 4: Simplify right side
    3,963.54x = 13,764,210.14
  5. Step 5: Solve for x
    x = 13,764,210.14/3,963.54
  6. Step 6: Final answer
    x = 3,472.71

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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.