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Finding the Fourth Proportional to 3,958.74, 5,938.38 and 1,493.49

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Solution

The fourth proportional to 3,958.74, 5,938.38 and 1,493.49 is: 2,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.74 : 5,938.38 = 1,493.49 : x
  2. Step 2: Convert to fraction form
    3,958.74/5,938.38 = 1,493.49/x
  3. Step 3: Cross multiply
    3,958.74x = 5,938.38 × 1,493.49
  4. Step 4: Simplify right side
    3,958.74x = 8,868,911.15
  5. Step 5: Solve for x
    x = 8,868,911.15/3,958.74
  6. Step 6: Final answer
    x = 2,240.34

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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.