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Finding the Fourth Proportional to 3,292.54, 4,936.48 and 1,647.90

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Solution

The fourth proportional to 3,292.54, 4,936.48 and 1,647.90 is: 2,470.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292.54 : 4,936.48 = 1,647.90 : x
  2. Step 2: Convert to fraction form
    3,292.54/4,936.48 = 1,647.90/x
  3. Step 3: Cross multiply
    3,292.54x = 4,936.48 × 1,647.90
  4. Step 4: Simplify right side
    3,292.54x = 8,134,821.27
  5. Step 5: Solve for x
    x = 8,134,821.27/3,292.54
  6. Step 6: Final answer
    x = 2,470.68

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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.