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Finding the Third Proportional to 5,305 and 11,531

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Solution

The third proportional to 5,305 and 11,531 is: 25,063.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305 : 11,531 = 11,531 : x
  2. Step 2: Convert to fraction form
    5,305/11,531 = 11,531/x
  3. Step 3: Cross multiply
    5,305x = 11,531 × 11,531
  4. Step 4: Simplify right side
    5,305x = 132,963,961
  5. Step 5: Solve for x
    x = 132,963,961/5,305
  6. Step 6: Final answer
    x = 25,063.89

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.