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Finding the Third Proportional to 42,531.75 and 91,563

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Solution

The third proportional to 42,531.75 and 91,563 is: 197,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,531.75 : 91,563 = 91,563 : x
  2. Step 2: Convert to fraction form
    42,531.75/91,563 = 91,563/x
  3. Step 3: Cross multiply
    42,531.75x = 91,563 × 91,563
  4. Step 4: Simplify right side
    42,531.75x = 8,383,782,969
  5. Step 5: Solve for x
    x = 8,383,782,969/42,531.75
  6. Step 6: Final answer
    x = 197,118.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.