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Finding the Fourth Proportional to 71,974.20, 107,994.60 and 27,586.20

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Solution

The fourth proportional to 71,974.20, 107,994.60 and 27,586.20 is: 41,392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,974.20 : 107,994.60 = 27,586.20 : x
  2. Step 2: Convert to fraction form
    71,974.20/107,994.60 = 27,586.20/x
  3. Step 3: Cross multiply
    71,974.20x = 107,994.60 × 27,586.20
  4. Step 4: Simplify right side
    71,974.20x = 2,979,160,634.52
  5. Step 5: Solve for x
    x = 2,979,160,634.52/71,974.20
  6. Step 6: Final answer
    x = 41,392.06

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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.