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Finding the Third Proportional to 13,266 and 20,529

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Solution

The third proportional to 13,266 and 20,529 is: 31,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266 : 20,529 = 20,529 : x
  2. Step 2: Convert to fraction form
    13,266/20,529 = 20,529/x
  3. Step 3: Cross multiply
    13,266x = 20,529 × 20,529
  4. Step 4: Simplify right side
    13,266x = 421,439,841
  5. Step 5: Solve for x
    x = 421,439,841/13,266
  6. Step 6: Final answer
    x = 31,768.42

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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.