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Finding the Fourth Proportional to 3,957.98, 5,937.60 and 1,493

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Solution

The fourth proportional to 3,957.98, 5,937.60 and 1,493 is: 2,239.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.98 : 5,937.60 = 1,493 : x
  2. Step 2: Convert to fraction form
    3,957.98/5,937.60 = 1,493/x
  3. Step 3: Cross multiply
    3,957.98x = 5,937.60 × 1,493
  4. Step 4: Simplify right side
    3,957.98x = 8,864,836.80
  5. Step 5: Solve for x
    x = 8,864,836.80/3,957.98
  6. Step 6: Final answer
    x = 2,239.74

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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.