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Finding the Third Proportional to 16,988 and 36,163

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Solution

The third proportional to 16,988 and 36,163 is: 76,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,988 : 36,163 = 36,163 : x
  2. Step 2: Convert to fraction form
    16,988/36,163 = 36,163/x
  3. Step 3: Cross multiply
    16,988x = 36,163 × 36,163
  4. Step 4: Simplify right side
    16,988x = 1,307,762,569
  5. Step 5: Solve for x
    x = 1,307,762,569/16,988
  6. Step 6: Final answer
    x = 76,981.55

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.