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Finding the Third Proportional to 3,624 and 3,916

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Solution

The third proportional to 3,624 and 3,916 is: 4,231.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624 : 3,916 = 3,916 : x
  2. Step 2: Convert to fraction form
    3,624/3,916 = 3,916/x
  3. Step 3: Cross multiply
    3,624x = 3,916 × 3,916
  4. Step 4: Simplify right side
    3,624x = 15,335,056
  5. Step 5: Solve for x
    x = 15,335,056/3,624
  6. Step 6: Final answer
    x = 4,231.53

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.