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Finding the Third Proportional to 6,992 and 16,520

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Solution

The third proportional to 6,992 and 16,520 is: 39,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992 : 16,520 = 16,520 : x
  2. Step 2: Convert to fraction form
    6,992/16,520 = 16,520/x
  3. Step 3: Cross multiply
    6,992x = 16,520 × 16,520
  4. Step 4: Simplify right side
    6,992x = 272,910,400
  5. Step 5: Solve for x
    x = 272,910,400/6,992
  6. Step 6: Final answer
    x = 39,031.81

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.