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Finding the Third Proportional to 3,930 and 9,263

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Solution

The third proportional to 3,930 and 9,263 is: 21,832.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930 : 9,263 = 9,263 : x
  2. Step 2: Convert to fraction form
    3,930/9,263 = 9,263/x
  3. Step 3: Cross multiply
    3,930x = 9,263 × 9,263
  4. Step 4: Simplify right side
    3,930x = 85,803,169
  5. Step 5: Solve for x
    x = 85,803,169/3,930
  6. Step 6: Final answer
    x = 21,832.87

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.