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Finding the Third Proportional to 26,979 and 55,028

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Solution

The third proportional to 26,979 and 55,028 is: 112,238.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979 : 55,028 = 55,028 : x
  2. Step 2: Convert to fraction form
    26,979/55,028 = 55,028/x
  3. Step 3: Cross multiply
    26,979x = 55,028 × 55,028
  4. Step 4: Simplify right side
    26,979x = 3,028,080,784
  5. Step 5: Solve for x
    x = 3,028,080,784/26,979
  6. Step 6: Final answer
    x = 112,238.44

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.