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Finding the Fourth Proportional to 7,786.05, 10,745.07 and 4,249.44

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Solution

The fourth proportional to 7,786.05, 10,745.07 and 4,249.44 is: 5,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.05 : 10,745.07 = 4,249.44 : x
  2. Step 2: Convert to fraction form
    7,786.05/10,745.07 = 4,249.44/x
  3. Step 3: Cross multiply
    7,786.05x = 10,745.07 × 4,249.44
  4. Step 4: Simplify right side
    7,786.05x = 45,660,530.26
  5. Step 5: Solve for x
    x = 45,660,530.26/7,786.05
  6. Step 6: Final answer
    x = 5,864.40

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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.