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Finding the Fourth Proportional to 2,938.62, 4,408.10 and 1,064.92

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Solution

The fourth proportional to 2,938.62, 4,408.10 and 1,064.92 is: 1,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.62 : 4,408.10 = 1,064.92 : x
  2. Step 2: Convert to fraction form
    2,938.62/4,408.10 = 1,064.92/x
  3. Step 3: Cross multiply
    2,938.62x = 4,408.10 × 1,064.92
  4. Step 4: Simplify right side
    2,938.62x = 4,694,265.49
  5. Step 5: Solve for x
    x = 4,694,265.49/2,938.62
  6. Step 6: Final answer
    x = 1,597.44

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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.