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Finding the Third Proportional to 4,945 and 9,404

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Solution

The third proportional to 4,945 and 9,404 is: 17,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945 : 9,404 = 9,404 : x
  2. Step 2: Convert to fraction form
    4,945/9,404 = 9,404/x
  3. Step 3: Cross multiply
    4,945x = 9,404 × 9,404
  4. Step 4: Simplify right side
    4,945x = 88,435,216
  5. Step 5: Solve for x
    x = 88,435,216/4,945
  6. Step 6: Final answer
    x = 17,883.76

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.