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Finding the Fourth Proportional to 3,958.12, 5,937.18 and 1,648

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Solution

The fourth proportional to 3,958.12, 5,937.18 and 1,648 is: 2,472

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.12 : 5,937.18 = 1,648 : x
  2. Step 2: Convert to fraction form
    3,958.12/5,937.18 = 1,648/x
  3. Step 3: Cross multiply
    3,958.12x = 5,937.18 × 1,648
  4. Step 4: Simplify right side
    3,958.12x = 9,784,472.64
  5. Step 5: Solve for x
    x = 9,784,472.64/3,958.12
  6. Step 6: Final answer
    x = 2,472

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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.