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Finding the Third Proportional to 15,660 and 32,610

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Solution

The third proportional to 15,660 and 32,610 is: 67,906.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660 : 32,610 = 32,610 : x
  2. Step 2: Convert to fraction form
    15,660/32,610 = 32,610/x
  3. Step 3: Cross multiply
    15,660x = 32,610 × 32,610
  4. Step 4: Simplify right side
    15,660x = 1,063,412,100
  5. Step 5: Solve for x
    x = 1,063,412,100/15,660
  6. Step 6: Final answer
    x = 67,906.26

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.