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Finding the Third Proportional to 2,992 and 7,042

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Solution

The third proportional to 2,992 and 7,042 is: 16,574.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992 : 7,042 = 7,042 : x
  2. Step 2: Convert to fraction form
    2,992/7,042 = 7,042/x
  3. Step 3: Cross multiply
    2,992x = 7,042 × 7,042
  4. Step 4: Simplify right side
    2,992x = 49,589,764
  5. Step 5: Solve for x
    x = 49,589,764/2,992
  6. Step 6: Final answer
    x = 16,574.12

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.