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Finding the Third Proportional to 13,768 and 18,656

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Solution

The third proportional to 13,768 and 18,656 is: 25,279.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768 : 18,656 = 18,656 : x
  2. Step 2: Convert to fraction form
    13,768/18,656 = 18,656/x
  3. Step 3: Cross multiply
    13,768x = 18,656 × 18,656
  4. Step 4: Simplify right side
    13,768x = 348,046,336
  5. Step 5: Solve for x
    x = 348,046,336/13,768
  6. Step 6: Final answer
    x = 25,279.37

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.