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Finding the Third Proportional to 4,214.25 and 4,578.75

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Solution

The third proportional to 4,214.25 and 4,578.75 is: 4,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,214.25 : 4,578.75 = 4,578.75 : x
  2. Step 2: Convert to fraction form
    4,214.25/4,578.75 = 4,578.75/x
  3. Step 3: Cross multiply
    4,214.25x = 4,578.75 × 4,578.75
  4. Step 4: Simplify right side
    4,214.25x = 20,964,951.56
  5. Step 5: Solve for x
    x = 20,964,951.56/4,214.25
  6. Step 6: Final answer
    x = 4,974.78

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.