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Finding the Third Proportional to 20,884 and 36,806

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Solution

The third proportional to 20,884 and 36,806 is: 64,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,884 : 36,806 = 36,806 : x
  2. Step 2: Convert to fraction form
    20,884/36,806 = 36,806/x
  3. Step 3: Cross multiply
    20,884x = 36,806 × 36,806
  4. Step 4: Simplify right side
    20,884x = 1,354,681,636
  5. Step 5: Solve for x
    x = 1,354,681,636/20,884
  6. Step 6: Final answer
    x = 64,866.96

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.