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Finding the Fourth Proportional to 5,647.52, 7,793.79 and 3,408.96

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Solution

The fourth proportional to 5,647.52, 7,793.79 and 3,408.96 is: 4,704.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.52 : 7,793.79 = 3,408.96 : x
  2. Step 2: Convert to fraction form
    5,647.52/7,793.79 = 3,408.96/x
  3. Step 3: Cross multiply
    5,647.52x = 7,793.79 × 3,408.96
  4. Step 4: Simplify right side
    5,647.52x = 26,568,724.30
  5. Step 5: Solve for x
    x = 26,568,724.30/5,647.52
  6. Step 6: Final answer
    x = 4,704.49

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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.