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Finding the Fourth Proportional to 4,748.38, 7,108.43 and 3,516.68

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Solution

The fourth proportional to 4,748.38, 7,108.43 and 3,516.68 is: 5,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.38 : 7,108.43 = 3,516.68 : x
  2. Step 2: Convert to fraction form
    4,748.38/7,108.43 = 3,516.68/x
  3. Step 3: Cross multiply
    4,748.38x = 7,108.43 × 3,516.68
  4. Step 4: Simplify right side
    4,748.38x = 24,998,073.80
  5. Step 5: Solve for x
    x = 24,998,073.80/4,748.38
  6. Step 6: Final answer
    x = 5,264.55

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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.