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Finding the Third Proportional to 2,066 and 3,121

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Solution

The third proportional to 2,066 and 3,121 is: 4,714.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,066 : 3,121 = 3,121 : x
  2. Step 2: Convert to fraction form
    2,066/3,121 = 3,121/x
  3. Step 3: Cross multiply
    2,066x = 3,121 × 3,121
  4. Step 4: Simplify right side
    2,066x = 9,740,641
  5. Step 5: Solve for x
    x = 9,740,641/2,066
  6. Step 6: Final answer
    x = 4,714.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.