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Finding the Third Proportional to 20,806 and 26,994

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Solution

The third proportional to 20,806 and 26,994 is: 35,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806 : 26,994 = 26,994 : x
  2. Step 2: Convert to fraction form
    20,806/26,994 = 26,994/x
  3. Step 3: Cross multiply
    20,806x = 26,994 × 26,994
  4. Step 4: Simplify right side
    20,806x = 728,676,036
  5. Step 5: Solve for x
    x = 728,676,036/20,806
  6. Step 6: Final answer
    x = 35,022.40

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.