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Finding the Third Proportional to 12,723.75 and 27,957.75

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Solution

The third proportional to 12,723.75 and 27,957.75 is: 61,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.75 : 27,957.75 = 27,957.75 : x
  2. Step 2: Convert to fraction form
    12,723.75/27,957.75 = 27,957.75/x
  3. Step 3: Cross multiply
    12,723.75x = 27,957.75 × 27,957.75
  4. Step 4: Simplify right side
    12,723.75x = 781,635,785.06
  5. Step 5: Solve for x
    x = 781,635,785.06/12,723.75
  6. Step 6: Final answer
    x = 61,431.24

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.