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Finding the Third Proportional to 3,923.25 and 8,170.50

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Solution

The third proportional to 3,923.25 and 8,170.50 is: 17,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.25 : 8,170.50 = 8,170.50 : x
  2. Step 2: Convert to fraction form
    3,923.25/8,170.50 = 8,170.50/x
  3. Step 3: Cross multiply
    3,923.25x = 8,170.50 × 8,170.50
  4. Step 4: Simplify right side
    3,923.25x = 66,757,070.25
  5. Step 5: Solve for x
    x = 66,757,070.25/3,923.25
  6. Step 6: Final answer
    x = 17,015.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.