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Finding the Fourth Proportional to 8,786.98, 12,124.83 and 5,249.44

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Solution

The fourth proportional to 8,786.98, 12,124.83 and 5,249.44 is: 7,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.98 : 12,124.83 = 5,249.44 : x
  2. Step 2: Convert to fraction form
    8,786.98/12,124.83 = 5,249.44/x
  3. Step 3: Cross multiply
    8,786.98x = 12,124.83 × 5,249.44
  4. Step 4: Simplify right side
    8,786.98x = 63,648,567.60
  5. Step 5: Solve for x
    x = 63,648,567.60/8,786.98
  6. Step 6: Final answer
    x = 7,243.51

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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.