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Finding the Third Proportional to 16,872 and 36,660

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Solution

The third proportional to 16,872 and 36,660 is: 79,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872 : 36,660 = 36,660 : x
  2. Step 2: Convert to fraction form
    16,872/36,660 = 36,660/x
  3. Step 3: Cross multiply
    16,872x = 36,660 × 36,660
  4. Step 4: Simplify right side
    16,872x = 1,343,955,600
  5. Step 5: Solve for x
    x = 1,343,955,600/16,872
  6. Step 6: Final answer
    x = 79,655.97

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.