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Finding the Third Proportional to 4,260 and 5,918

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Solution

The third proportional to 4,260 and 5,918 is: 8,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260 : 5,918 = 5,918 : x
  2. Step 2: Convert to fraction form
    4,260/5,918 = 5,918/x
  3. Step 3: Cross multiply
    4,260x = 5,918 × 5,918
  4. Step 4: Simplify right side
    4,260x = 35,022,724
  5. Step 5: Solve for x
    x = 35,022,724/4,260
  6. Step 6: Final answer
    x = 8,221.30

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.