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Finding the Third Proportional to 992 and 2,670

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Solution

The third proportional to 992 and 2,670 is: 7,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    992 : 2,670 = 2,670 : x
  2. Step 2: Convert to fraction form
    992/2,670 = 2,670/x
  3. Step 3: Cross multiply
    992x = 2,670 × 2,670
  4. Step 4: Simplify right side
    992x = 7,128,900
  5. Step 5: Solve for x
    x = 7,128,900/992
  6. Step 6: Final answer
    x = 7,186.39

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Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.