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Finding the Third Proportional to 6,918 and 11,013

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Solution

The third proportional to 6,918 and 11,013 is: 17,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918 : 11,013 = 11,013 : x
  2. Step 2: Convert to fraction form
    6,918/11,013 = 11,013/x
  3. Step 3: Cross multiply
    6,918x = 11,013 × 11,013
  4. Step 4: Simplify right side
    6,918x = 121,286,169
  5. Step 5: Solve for x
    x = 121,286,169/6,918
  6. Step 6: Final answer
    x = 17,531.97

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.