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Finding the Fourth Proportional to 4,839.92, 7,255.22 and 3,079.44

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Solution

The fourth proportional to 4,839.92, 7,255.22 and 3,079.44 is: 4,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.92 : 7,255.22 = 3,079.44 : x
  2. Step 2: Convert to fraction form
    4,839.92/7,255.22 = 3,079.44/x
  3. Step 3: Cross multiply
    4,839.92x = 7,255.22 × 3,079.44
  4. Step 4: Simplify right side
    4,839.92x = 22,342,014.68
  5. Step 5: Solve for x
    x = 22,342,014.68/4,839.92
  6. Step 6: Final answer
    x = 4,616.20

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1.5x scale

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.