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Finding the Third Proportional to 13,760 and 18,644

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Solution

The third proportional to 13,760 and 18,644 is: 25,261.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760 : 18,644 = 18,644 : x
  2. Step 2: Convert to fraction form
    13,760/18,644 = 18,644/x
  3. Step 3: Cross multiply
    13,760x = 18,644 × 18,644
  4. Step 4: Simplify right side
    13,760x = 347,598,736
  5. Step 5: Solve for x
    x = 347,598,736/13,760
  6. Step 6: Final answer
    x = 25,261.54

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.