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Finding the Fourth Proportional to 3,967.67, 5,951.51 and 1,628.94

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Solution

The fourth proportional to 3,967.67, 5,951.51 and 1,628.94 is: 2,443.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.67 : 5,951.51 = 1,628.94 : x
  2. Step 2: Convert to fraction form
    3,967.67/5,951.51 = 1,628.94/x
  3. Step 3: Cross multiply
    3,967.67x = 5,951.51 × 1,628.94
  4. Step 4: Simplify right side
    3,967.67x = 9,694,644.55
  5. Step 5: Solve for x
    x = 9,694,644.55/3,967.67
  6. Step 6: Final answer
    x = 2,443.41

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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.