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Finding the Fourth Proportional to 72,003.75, 107,994.67 and 27,651.39

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Solution

The fourth proportional to 72,003.75, 107,994.67 and 27,651.39 is: 41,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003.75 : 107,994.67 = 27,651.39 : x
  2. Step 2: Convert to fraction form
    72,003.75/107,994.67 = 27,651.39/x
  3. Step 3: Cross multiply
    72,003.75x = 107,994.67 × 27,651.39
  4. Step 4: Simplify right side
    72,003.75x = 2,986,202,738.09
  5. Step 5: Solve for x
    x = 2,986,202,738.09/72,003.75
  6. Step 6: Final answer
    x = 41,472.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.