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Finding the Third Proportional to 2,992 and 7,228

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Solution

The third proportional to 2,992 and 7,228 is: 17,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992 : 7,228 = 7,228 : x
  2. Step 2: Convert to fraction form
    2,992/7,228 = 7,228/x
  3. Step 3: Cross multiply
    2,992x = 7,228 × 7,228
  4. Step 4: Simplify right side
    2,992x = 52,243,984
  5. Step 5: Solve for x
    x = 52,243,984/2,992
  6. Step 6: Final answer
    x = 17,461.22

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.