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Finding the Third Proportional to 4,027 and 5,370

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Solution

The third proportional to 4,027 and 5,370 is: 7,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,027 : 5,370 = 5,370 : x
  2. Step 2: Convert to fraction form
    4,027/5,370 = 5,370/x
  3. Step 3: Cross multiply
    4,027x = 5,370 × 5,370
  4. Step 4: Simplify right side
    4,027x = 28,836,900
  5. Step 5: Solve for x
    x = 28,836,900/4,027
  6. Step 6: Final answer
    x = 7,160.89

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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.