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Finding the Third Proportional to 10,170 and 15,761

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Solution

The third proportional to 10,170 and 15,761 is: 24,425.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,170 : 15,761 = 15,761 : x
  2. Step 2: Convert to fraction form
    10,170/15,761 = 15,761/x
  3. Step 3: Cross multiply
    10,170x = 15,761 × 15,761
  4. Step 4: Simplify right side
    10,170x = 248,409,121
  5. Step 5: Solve for x
    x = 248,409,121/10,170
  6. Step 6: Final answer
    x = 24,425.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.