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Finding the Fourth Proportional to 13,899.99, 19,183.85 and 8,234.30

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Solution

The fourth proportional to 13,899.99, 19,183.85 and 8,234.30 is: 11,364.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.99 : 19,183.85 = 8,234.30 : x
  2. Step 2: Convert to fraction form
    13,899.99/19,183.85 = 8,234.30/x
  3. Step 3: Cross multiply
    13,899.99x = 19,183.85 × 8,234.30
  4. Step 4: Simplify right side
    13,899.99x = 157,965,576.06
  5. Step 5: Solve for x
    x = 157,965,576.06/13,899.99
  6. Step 6: Final answer
    x = 11,364.44

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Similar ratio
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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.