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Finding the Third Proportional to 4,297.50 and 9,171

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Solution

The third proportional to 4,297.50 and 9,171 is: 19,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,297.50 : 9,171 = 9,171 : x
  2. Step 2: Convert to fraction form
    4,297.50/9,171 = 9,171/x
  3. Step 3: Cross multiply
    4,297.50x = 9,171 × 9,171
  4. Step 4: Simplify right side
    4,297.50x = 84,107,241
  5. Step 5: Solve for x
    x = 84,107,241/4,297.50
  6. Step 6: Final answer
    x = 19,571.20

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.