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Finding the Third Proportional to 5,992 and 7,620

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Solution

The third proportional to 5,992 and 7,620 is: 9,690.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,992 : 7,620 = 7,620 : x
  2. Step 2: Convert to fraction form
    5,992/7,620 = 7,620/x
  3. Step 3: Cross multiply
    5,992x = 7,620 × 7,620
  4. Step 4: Simplify right side
    5,992x = 58,064,400
  5. Step 5: Solve for x
    x = 58,064,400/5,992
  6. Step 6: Final answer
    x = 9,690.32

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.