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Finding the Third Proportional to 3,930 and 9,537

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Solution

The third proportional to 3,930 and 9,537 is: 23,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930 : 9,537 = 9,537 : x
  2. Step 2: Convert to fraction form
    3,930/9,537 = 9,537/x
  3. Step 3: Cross multiply
    3,930x = 9,537 × 9,537
  4. Step 4: Simplify right side
    3,930x = 90,954,369
  5. Step 5: Solve for x
    x = 90,954,369/3,930
  6. Step 6: Final answer
    x = 23,143.61

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.