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Finding the Third Proportional to 16,971 and 36,450

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Solution

The third proportional to 16,971 and 36,450 is: 78,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,971 : 36,450 = 36,450 : x
  2. Step 2: Convert to fraction form
    16,971/36,450 = 36,450/x
  3. Step 3: Cross multiply
    16,971x = 36,450 × 36,450
  4. Step 4: Simplify right side
    16,971x = 1,328,602,500
  5. Step 5: Solve for x
    x = 1,328,602,500/16,971
  6. Step 6: Final answer
    x = 78,286.64

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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.