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Finding the Third Proportional to 6,888 and 11,856

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Solution

The third proportional to 6,888 and 11,856 is: 20,407.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888 : 11,856 = 11,856 : x
  2. Step 2: Convert to fraction form
    6,888/11,856 = 11,856/x
  3. Step 3: Cross multiply
    6,888x = 11,856 × 11,856
  4. Step 4: Simplify right side
    6,888x = 140,564,736
  5. Step 5: Solve for x
    x = 140,564,736/6,888
  6. Step 6: Final answer
    x = 20,407.19

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.