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Finding the Third Proportional to 13,769 and 22,021

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Solution

The third proportional to 13,769 and 22,021 is: 35,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769 : 22,021 = 22,021 : x
  2. Step 2: Convert to fraction form
    13,769/22,021 = 22,021/x
  3. Step 3: Cross multiply
    13,769x = 22,021 × 22,021
  4. Step 4: Simplify right side
    13,769x = 484,924,441
  5. Step 5: Solve for x
    x = 484,924,441/13,769
  6. Step 6: Final answer
    x = 35,218.57

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.