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Finding the Third Proportional to 16,930 and 36,772

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Solution

The third proportional to 16,930 and 36,772 is: 79,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,930 : 36,772 = 36,772 : x
  2. Step 2: Convert to fraction form
    16,930/36,772 = 36,772/x
  3. Step 3: Cross multiply
    16,930x = 36,772 × 36,772
  4. Step 4: Simplify right side
    16,930x = 1,352,179,984
  5. Step 5: Solve for x
    x = 1,352,179,984/16,930
  6. Step 6: Final answer
    x = 79,868.87

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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.