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Finding the Fourth Proportional to 5,608.98, 7,738.92 and 3,249.72

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Solution

The fourth proportional to 5,608.98, 7,738.92 and 3,249.72 is: 4,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.98 : 7,738.92 = 3,249.72 : x
  2. Step 2: Convert to fraction form
    5,608.98/7,738.92 = 3,249.72/x
  3. Step 3: Cross multiply
    5,608.98x = 7,738.92 × 3,249.72
  4. Step 4: Simplify right side
    5,608.98x = 25,149,323.10
  5. Step 5: Solve for x
    x = 25,149,323.10/5,608.98
  6. Step 6: Final answer
    x = 4,483.76

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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.