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Finding the Third Proportional to 3,781.50 and 4,476.75

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Solution

The third proportional to 3,781.50 and 4,476.75 is: 5,299.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.50 : 4,476.75 = 4,476.75 : x
  2. Step 2: Convert to fraction form
    3,781.50/4,476.75 = 4,476.75/x
  3. Step 3: Cross multiply
    3,781.50x = 4,476.75 × 4,476.75
  4. Step 4: Simplify right side
    3,781.50x = 20,041,290.56
  5. Step 5: Solve for x
    x = 20,041,290.56/3,781.50
  6. Step 6: Final answer
    x = 5,299.83

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.