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Finding the Third Proportional to 16,885 and 36,368

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Solution

The third proportional to 16,885 and 36,368 is: 78,331.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885 : 36,368 = 36,368 : x
  2. Step 2: Convert to fraction form
    16,885/36,368 = 36,368/x
  3. Step 3: Cross multiply
    16,885x = 36,368 × 36,368
  4. Step 4: Simplify right side
    16,885x = 1,322,631,424
  5. Step 5: Solve for x
    x = 1,322,631,424/16,885
  6. Step 6: Final answer
    x = 78,331.74

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.