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Finding the Third Proportional to 11,225 and 19,272

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Solution

The third proportional to 11,225 and 19,272 is: 33,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225 : 19,272 = 19,272 : x
  2. Step 2: Convert to fraction form
    11,225/19,272 = 19,272/x
  3. Step 3: Cross multiply
    11,225x = 19,272 × 19,272
  4. Step 4: Simplify right side
    11,225x = 371,409,984
  5. Step 5: Solve for x
    x = 371,409,984/11,225
  6. Step 6: Final answer
    x = 33,087.75

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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.