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Finding the Third Proportional to 4,071 and 5,412

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Solution

The third proportional to 4,071 and 5,412 is: 7,194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071 : 5,412 = 5,412 : x
  2. Step 2: Convert to fraction form
    4,071/5,412 = 5,412/x
  3. Step 3: Cross multiply
    4,071x = 5,412 × 5,412
  4. Step 4: Simplify right side
    4,071x = 29,289,744
  5. Step 5: Solve for x
    x = 29,289,744/4,071
  6. Step 6: Final answer
    x = 7,194.73

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.