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Finding the Third Proportional to 9,936 and 15,976

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Solution

The third proportional to 9,936 and 15,976 is: 25,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936 : 15,976 = 15,976 : x
  2. Step 2: Convert to fraction form
    9,936/15,976 = 15,976/x
  3. Step 3: Cross multiply
    9,936x = 15,976 × 15,976
  4. Step 4: Simplify right side
    9,936x = 255,232,576
  5. Step 5: Solve for x
    x = 255,232,576/9,936
  6. Step 6: Final answer
    x = 25,687.66

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.