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Finding the Third Proportional to 4,420 and 8,150

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Solution

The third proportional to 4,420 and 8,150 is: 15,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420 : 8,150 = 8,150 : x
  2. Step 2: Convert to fraction form
    4,420/8,150 = 8,150/x
  3. Step 3: Cross multiply
    4,420x = 8,150 × 8,150
  4. Step 4: Simplify right side
    4,420x = 66,422,500
  5. Step 5: Solve for x
    x = 66,422,500/4,420
  6. Step 6: Final answer
    x = 15,027.71

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.