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Finding the Fourth Proportional to 7,786.59, 10,745.49 and 4,249.83

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Solution

The fourth proportional to 7,786.59, 10,745.49 and 4,249.83 is: 5,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.59 : 10,745.49 = 4,249.83 : x
  2. Step 2: Convert to fraction form
    7,786.59/10,745.49 = 4,249.83/x
  3. Step 3: Cross multiply
    7,786.59x = 10,745.49 × 4,249.83
  4. Step 4: Simplify right side
    7,786.59x = 45,666,505.77
  5. Step 5: Solve for x
    x = 45,666,505.77/7,786.59
  6. Step 6: Final answer
    x = 5,864.76

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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.