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Finding the Fourth Proportional to 5,647.54, 7,793.39 and 3,257.61

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Solution

The fourth proportional to 5,647.54, 7,793.39 and 3,257.61 is: 4,495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.54 : 7,793.39 = 3,257.61 : x
  2. Step 2: Convert to fraction form
    5,647.54/7,793.39 = 3,257.61/x
  3. Step 3: Cross multiply
    5,647.54x = 7,793.39 × 3,257.61
  4. Step 4: Simplify right side
    5,647.54x = 25,387,825.20
  5. Step 5: Solve for x
    x = 25,387,825.20/5,647.54
  6. Step 6: Final answer
    x = 4,495.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.