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Finding the Third Proportional to 13,565 and 27,760

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Solution

The third proportional to 13,565 and 27,760 is: 56,809.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565 : 27,760 = 27,760 : x
  2. Step 2: Convert to fraction form
    13,565/27,760 = 27,760/x
  3. Step 3: Cross multiply
    13,565x = 27,760 × 27,760
  4. Step 4: Simplify right side
    13,565x = 770,617,600
  5. Step 5: Solve for x
    x = 770,617,600/13,565
  6. Step 6: Final answer
    x = 56,809.26

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.