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Finding the Third Proportional to 27,979.88 and 43,228.13

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Solution

The third proportional to 27,979.88 and 43,228.13 is: 66,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.88 : 43,228.13 = 43,228.13 : x
  2. Step 2: Convert to fraction form
    27,979.88/43,228.13 = 43,228.13/x
  3. Step 3: Cross multiply
    27,979.88x = 43,228.13 × 43,228.13
  4. Step 4: Simplify right side
    27,979.88x = 1,868,670,791.02
  5. Step 5: Solve for x
    x = 1,868,670,791.02/27,979.88
  6. Step 6: Final answer
    x = 66,786.25

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.