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Finding the Fourth Proportional to 3,958.41, 5,935.61 and 1,324.98

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Solution

The fourth proportional to 3,958.41, 5,935.61 and 1,324.98 is: 1,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.41 : 5,935.61 = 1,324.98 : x
  2. Step 2: Convert to fraction form
    3,958.41/5,935.61 = 1,324.98/x
  3. Step 3: Cross multiply
    3,958.41x = 5,935.61 × 1,324.98
  4. Step 4: Simplify right side
    3,958.41x = 7,864,557.91
  5. Step 5: Solve for x
    x = 7,864,557.91/3,958.41
  6. Step 6: Final answer
    x = 1,986.80

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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.