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Finding the Third Proportional to 4,213.50 and 9,174.50

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Solution

The third proportional to 4,213.50 and 9,174.50 is: 19,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.50 : 9,174.50 = 9,174.50 : x
  2. Step 2: Convert to fraction form
    4,213.50/9,174.50 = 9,174.50/x
  3. Step 3: Cross multiply
    4,213.50x = 9,174.50 × 9,174.50
  4. Step 4: Simplify right side
    4,213.50x = 84,171,450.25
  5. Step 5: Solve for x
    x = 84,171,450.25/4,213.50
  6. Step 6: Final answer
    x = 19,976.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.