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Finding the Third Proportional to 7,612 and 11,806

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Solution

The third proportional to 7,612 and 11,806 is: 18,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612 : 11,806 = 11,806 : x
  2. Step 2: Convert to fraction form
    7,612/11,806 = 11,806/x
  3. Step 3: Cross multiply
    7,612x = 11,806 × 11,806
  4. Step 4: Simplify right side
    7,612x = 139,381,636
  5. Step 5: Solve for x
    x = 139,381,636/7,612
  6. Step 6: Final answer
    x = 18,310.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.