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Finding the Third Proportional to 13,266 and 20,706

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Solution

The third proportional to 13,266 and 20,706 is: 32,318.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266 : 20,706 = 20,706 : x
  2. Step 2: Convert to fraction form
    13,266/20,706 = 20,706/x
  3. Step 3: Cross multiply
    13,266x = 20,706 × 20,706
  4. Step 4: Simplify right side
    13,266x = 428,738,436
  5. Step 5: Solve for x
    x = 428,738,436/13,266
  6. Step 6: Final answer
    x = 32,318.59

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.