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Finding the Third Proportional to 54,998 and 85,782

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Solution

The third proportional to 54,998 and 85,782 is: 133,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,998 : 85,782 = 85,782 : x
  2. Step 2: Convert to fraction form
    54,998/85,782 = 85,782/x
  3. Step 3: Cross multiply
    54,998x = 85,782 × 85,782
  4. Step 4: Simplify right side
    54,998x = 7,358,551,524
  5. Step 5: Solve for x
    x = 7,358,551,524/54,998
  6. Step 6: Final answer
    x = 133,796.71

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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.