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Finding the Third Proportional to 1,992 and 5,043

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Solution

The third proportional to 1,992 and 5,043 is: 12,766.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992 : 5,043 = 5,043 : x
  2. Step 2: Convert to fraction form
    1,992/5,043 = 5,043/x
  3. Step 3: Cross multiply
    1,992x = 5,043 × 5,043
  4. Step 4: Simplify right side
    1,992x = 25,431,849
  5. Step 5: Solve for x
    x = 25,431,849/1,992
  6. Step 6: Final answer
    x = 12,766.99

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Why These Related Problems?

These problems maintain the same ratio (2.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.