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Finding the Third Proportional to 3,644 and 7,969

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Solution

The third proportional to 3,644 and 7,969 is: 17,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644 : 7,969 = 7,969 : x
  2. Step 2: Convert to fraction form
    3,644/7,969 = 7,969/x
  3. Step 3: Cross multiply
    3,644x = 7,969 × 7,969
  4. Step 4: Simplify right side
    3,644x = 63,504,961
  5. Step 5: Solve for x
    x = 63,504,961/3,644
  6. Step 6: Final answer
    x = 17,427.27

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.