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Finding the Fourth Proportional to 9,249.69, 13,880.91 and 8,015.86

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Solution

The fourth proportional to 9,249.69, 13,880.91 and 8,015.86 is: 12,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,249.69 : 13,880.91 = 8,015.86 : x
  2. Step 2: Convert to fraction form
    9,249.69/13,880.91 = 8,015.86/x
  3. Step 3: Cross multiply
    9,249.69x = 13,880.91 × 8,015.86
  4. Step 4: Simplify right side
    9,249.69x = 111,267,361.83
  5. Step 5: Solve for x
    x = 111,267,361.83/9,249.69
  6. Step 6: Final answer
    x = 12,029.31

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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.