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Finding the Third Proportional to 61,285 and 84,393

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Solution

The third proportional to 61,285 and 84,393 is: 116,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,285 : 84,393 = 84,393 : x
  2. Step 2: Convert to fraction form
    61,285/84,393 = 84,393/x
  3. Step 3: Cross multiply
    61,285x = 84,393 × 84,393
  4. Step 4: Simplify right side
    61,285x = 7,122,178,449
  5. Step 5: Solve for x
    x = 7,122,178,449/61,285
  6. Step 6: Final answer
    x = 116,214.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.