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Finding the Third Proportional to 6,900.75 and 12,249

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Solution

The third proportional to 6,900.75 and 12,249 is: 21,742.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900.75 : 12,249 = 12,249 : x
  2. Step 2: Convert to fraction form
    6,900.75/12,249 = 12,249/x
  3. Step 3: Cross multiply
    6,900.75x = 12,249 × 12,249
  4. Step 4: Simplify right side
    6,900.75x = 150,038,001
  5. Step 5: Solve for x
    x = 150,038,001/6,900.75
  6. Step 6: Final answer
    x = 21,742.27

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.