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Finding the Third Proportional to 16,767 and 39,987

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Solution

The third proportional to 16,767 and 39,987 is: 95,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,767 : 39,987 = 39,987 : x
  2. Step 2: Convert to fraction form
    16,767/39,987 = 39,987/x
  3. Step 3: Cross multiply
    16,767x = 39,987 × 39,987
  4. Step 4: Simplify right side
    16,767x = 1,598,960,169
  5. Step 5: Solve for x
    x = 1,598,960,169/16,767
  6. Step 6: Final answer
    x = 95,363.52

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.