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Finding the Fourth Proportional to 12,499.62, 17,249.18 and 6,834.41

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Solution

The fourth proportional to 12,499.62, 17,249.18 and 6,834.41 is: 9,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,499.62 : 17,249.18 = 6,834.41 : x
  2. Step 2: Convert to fraction form
    12,499.62/17,249.18 = 6,834.41/x
  3. Step 3: Cross multiply
    12,499.62x = 17,249.18 × 6,834.41
  4. Step 4: Simplify right side
    12,499.62x = 117,887,847.87
  5. Step 5: Solve for x
    x = 117,887,847.87/12,499.62
  6. Step 6: Final answer
    x = 9,431.31

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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.