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Finding the Third Proportional to 27,861 and 58,455

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Solution

The third proportional to 27,861 and 58,455 is: 122,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861 : 58,455 = 58,455 : x
  2. Step 2: Convert to fraction form
    27,861/58,455 = 58,455/x
  3. Step 3: Cross multiply
    27,861x = 58,455 × 58,455
  4. Step 4: Simplify right side
    27,861x = 3,416,987,025
  5. Step 5: Solve for x
    x = 3,416,987,025/27,861
  6. Step 6: Final answer
    x = 122,644.09

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.