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Finding the Third Proportional to 28,127 and 43,923

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Solution

The third proportional to 28,127 and 43,923 is: 68,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127 : 43,923 = 43,923 : x
  2. Step 2: Convert to fraction form
    28,127/43,923 = 43,923/x
  3. Step 3: Cross multiply
    28,127x = 43,923 × 43,923
  4. Step 4: Simplify right side
    28,127x = 1,929,229,929
  5. Step 5: Solve for x
    x = 1,929,229,929/28,127
  6. Step 6: Final answer
    x = 68,589.96

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.