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Finding the Third Proportional to 27,205 and 57,379

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Solution

The third proportional to 27,205 and 57,379 is: 121,020.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,205 : 57,379 = 57,379 : x
  2. Step 2: Convert to fraction form
    27,205/57,379 = 57,379/x
  3. Step 3: Cross multiply
    27,205x = 57,379 × 57,379
  4. Step 4: Simplify right side
    27,205x = 3,292,349,641
  5. Step 5: Solve for x
    x = 3,292,349,641/27,205
  6. Step 6: Final answer
    x = 121,020.02

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.