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Finding the Third Proportional to 18,936 and 41,328

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Solution

The third proportional to 18,936 and 41,328 is: 90,198.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936 : 41,328 = 41,328 : x
  2. Step 2: Convert to fraction form
    18,936/41,328 = 41,328/x
  3. Step 3: Cross multiply
    18,936x = 41,328 × 41,328
  4. Step 4: Simplify right side
    18,936x = 1,708,003,584
  5. Step 5: Solve for x
    x = 1,708,003,584/18,936
  6. Step 6: Final answer
    x = 90,198.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.