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Finding the Fourth Proportional to 7,093.75, 9,786.47 and 4,067.18

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Solution

The fourth proportional to 7,093.75, 9,786.47 and 4,067.18 is: 5,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,093.75 : 9,786.47 = 4,067.18 : x
  2. Step 2: Convert to fraction form
    7,093.75/9,786.47 = 4,067.18/x
  3. Step 3: Cross multiply
    7,093.75x = 9,786.47 × 4,067.18
  4. Step 4: Simplify right side
    7,093.75x = 39,803,335.05
  5. Step 5: Solve for x
    x = 39,803,335.05/7,093.75
  6. Step 6: Final answer
    x = 5,611.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.