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Finding the Third Proportional to 56,923 and 81,988

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Solution

The third proportional to 56,923 and 81,988 is: 118,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,923 : 81,988 = 81,988 : x
  2. Step 2: Convert to fraction form
    56,923/81,988 = 81,988/x
  3. Step 3: Cross multiply
    56,923x = 81,988 × 81,988
  4. Step 4: Simplify right side
    56,923x = 6,722,032,144
  5. Step 5: Solve for x
    x = 6,722,032,144/56,923
  6. Step 6: Final answer
    x = 118,089.91

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.