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Finding the Third Proportional to 11,936 and 15,472

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Solution

The third proportional to 11,936 and 15,472 is: 20,055.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,936 : 15,472 = 15,472 : x
  2. Step 2: Convert to fraction form
    11,936/15,472 = 15,472/x
  3. Step 3: Cross multiply
    11,936x = 15,472 × 15,472
  4. Step 4: Simplify right side
    11,936x = 239,382,784
  5. Step 5: Solve for x
    x = 239,382,784/11,936
  6. Step 6: Final answer
    x = 20,055.53

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.