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Finding the Third Proportional to 3,922 and 9,097

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Solution

The third proportional to 3,922 and 9,097 is: 21,100.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922 : 9,097 = 9,097 : x
  2. Step 2: Convert to fraction form
    3,922/9,097 = 9,097/x
  3. Step 3: Cross multiply
    3,922x = 9,097 × 9,097
  4. Step 4: Simplify right side
    3,922x = 82,755,409
  5. Step 5: Solve for x
    x = 82,755,409/3,922
  6. Step 6: Final answer
    x = 21,100.31

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.