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Finding the Third Proportional to 1,789.17 and 3,843.28

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Solution

The third proportional to 1,789.17 and 3,843.28 is: 8,255.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.17 : 3,843.28 = 3,843.28 : x
  2. Step 2: Convert to fraction form
    1,789.17/3,843.28 = 3,843.28/x
  3. Step 3: Cross multiply
    1,789.17x = 3,843.28 × 3,843.28
  4. Step 4: Simplify right side
    1,789.17x = 14,770,810.77
  5. Step 5: Solve for x
    x = 14,770,810.77/1,789.17
  6. Step 6: Final answer
    x = 8,255.67

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.