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Finding the Third Proportional to 15,992 and 18,800

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Solution

The third proportional to 15,992 and 18,800 is: 22,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,992 : 18,800 = 18,800 : x
  2. Step 2: Convert to fraction form
    15,992/18,800 = 18,800/x
  3. Step 3: Cross multiply
    15,992x = 18,800 × 18,800
  4. Step 4: Simplify right side
    15,992x = 353,440,000
  5. Step 5: Solve for x
    x = 353,440,000/15,992
  6. Step 6: Final answer
    x = 22,101.05

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.