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Finding the Third Proportional to 6,918 and 13,992

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Solution

The third proportional to 6,918 and 13,992 is: 28,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918 : 13,992 = 13,992 : x
  2. Step 2: Convert to fraction form
    6,918/13,992 = 13,992/x
  3. Step 3: Cross multiply
    6,918x = 13,992 × 13,992
  4. Step 4: Simplify right side
    6,918x = 195,776,064
  5. Step 5: Solve for x
    x = 195,776,064/6,918
  6. Step 6: Final answer
    x = 28,299.52

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.