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Finding the Third Proportional to 3,224.50 and 7,057

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Solution

The third proportional to 3,224.50 and 7,057 is: 15,444.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,224.50 : 7,057 = 7,057 : x
  2. Step 2: Convert to fraction form
    3,224.50/7,057 = 7,057/x
  3. Step 3: Cross multiply
    3,224.50x = 7,057 × 7,057
  4. Step 4: Simplify right side
    3,224.50x = 49,801,249
  5. Step 5: Solve for x
    x = 49,801,249/3,224.50
  6. Step 6: Final answer
    x = 15,444.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.