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Finding the Third Proportional to 12,992 and 28,800

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Solution

The third proportional to 12,992 and 28,800 is: 63,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992 : 28,800 = 28,800 : x
  2. Step 2: Convert to fraction form
    12,992/28,800 = 28,800/x
  3. Step 3: Cross multiply
    12,992x = 28,800 × 28,800
  4. Step 4: Simplify right side
    12,992x = 829,440,000
  5. Step 5: Solve for x
    x = 829,440,000/12,992
  6. Step 6: Final answer
    x = 63,842.36

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.