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Finding the Third Proportional to 11,205 and 17,199

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Solution

The third proportional to 11,205 and 17,199 is: 26,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205 : 17,199 = 17,199 : x
  2. Step 2: Convert to fraction form
    11,205/17,199 = 17,199/x
  3. Step 3: Cross multiply
    11,205x = 17,199 × 17,199
  4. Step 4: Simplify right side
    11,205x = 295,805,601
  5. Step 5: Solve for x
    x = 295,805,601/11,205
  6. Step 6: Final answer
    x = 26,399.43

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.