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Finding the Fourth Proportional to 4,983.32, 7,471.02 and 3,418.58

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Solution

The fourth proportional to 4,983.32, 7,471.02 and 3,418.58 is: 5,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.32 : 7,471.02 = 3,418.58 : x
  2. Step 2: Convert to fraction form
    4,983.32/7,471.02 = 3,418.58/x
  3. Step 3: Cross multiply
    4,983.32x = 7,471.02 × 3,418.58
  4. Step 4: Simplify right side
    4,983.32x = 25,540,279.55
  5. Step 5: Solve for x
    x = 25,540,279.55/4,983.32
  6. Step 6: Final answer
    x = 5,125.15

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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.