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Finding the Third Proportional to 3,864 and 8,550

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Solution

The third proportional to 3,864 and 8,550 is: 18,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864 : 8,550 = 8,550 : x
  2. Step 2: Convert to fraction form
    3,864/8,550 = 8,550/x
  3. Step 3: Cross multiply
    3,864x = 8,550 × 8,550
  4. Step 4: Simplify right side
    3,864x = 73,102,500
  5. Step 5: Solve for x
    x = 73,102,500/3,864
  6. Step 6: Final answer
    x = 18,918.87

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.