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Finding the Third Proportional to 8,072 and 11,116

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Solution

The third proportional to 8,072 and 11,116 is: 15,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072 : 11,116 = 11,116 : x
  2. Step 2: Convert to fraction form
    8,072/11,116 = 11,116/x
  3. Step 3: Cross multiply
    8,072x = 11,116 × 11,116
  4. Step 4: Simplify right side
    8,072x = 123,565,456
  5. Step 5: Solve for x
    x = 123,565,456/8,072
  6. Step 6: Final answer
    x = 15,307.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.