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Finding the Fourth Proportional to 71,380.14, 107,028.72 and 27,010.32

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Solution

The fourth proportional to 71,380.14, 107,028.72 and 27,010.32 is: 40,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,380.14 : 107,028.72 = 27,010.32 : x
  2. Step 2: Convert to fraction form
    71,380.14/107,028.72 = 27,010.32/x
  3. Step 3: Cross multiply
    71,380.14x = 107,028.72 × 27,010.32
  4. Step 4: Simplify right side
    71,380.14x = 2,890,879,976.39
  5. Step 5: Solve for x
    x = 2,890,879,976.39/71,380.14
  6. Step 6: Final answer
    x = 40,499.78

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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.