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Finding the Third Proportional to 4,270 and 8,081

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Solution

The third proportional to 4,270 and 8,081 is: 15,293.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270 : 8,081 = 8,081 : x
  2. Step 2: Convert to fraction form
    4,270/8,081 = 8,081/x
  3. Step 3: Cross multiply
    4,270x = 8,081 × 8,081
  4. Step 4: Simplify right side
    4,270x = 65,302,561
  5. Step 5: Solve for x
    x = 65,302,561/4,270
  6. Step 6: Final answer
    x = 15,293.34

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.