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Finding the Third Proportional to 3,720 and 5,092

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Solution

The third proportional to 3,720 and 5,092 is: 6,970.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720 : 5,092 = 5,092 : x
  2. Step 2: Convert to fraction form
    3,720/5,092 = 5,092/x
  3. Step 3: Cross multiply
    3,720x = 5,092 × 5,092
  4. Step 4: Simplify right side
    3,720x = 25,928,464
  5. Step 5: Solve for x
    x = 25,928,464/3,720
  6. Step 6: Final answer
    x = 6,970.02

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.