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Finding the Third Proportional to 2,684.50 and 4,149

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Solution

The third proportional to 2,684.50 and 4,149 is: 6,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.50 : 4,149 = 4,149 : x
  2. Step 2: Convert to fraction form
    2,684.50/4,149 = 4,149/x
  3. Step 3: Cross multiply
    2,684.50x = 4,149 × 4,149
  4. Step 4: Simplify right side
    2,684.50x = 17,214,201
  5. Step 5: Solve for x
    x = 17,214,201/2,684.50
  6. Step 6: Final answer
    x = 6,412.44

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.