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Finding the Third Proportional to 4,745.25 and 7,116.19

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Solution

The third proportional to 4,745.25 and 7,116.19 is: 10,671.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.25 : 7,116.19 = 7,116.19 : x
  2. Step 2: Convert to fraction form
    4,745.25/7,116.19 = 7,116.19/x
  3. Step 3: Cross multiply
    4,745.25x = 7,116.19 × 7,116.19
  4. Step 4: Simplify right side
    4,745.25x = 50,640,124.54
  5. Step 5: Solve for x
    x = 50,640,124.54/4,745.25
  6. Step 6: Final answer
    x = 10,671.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.