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Finding the Fourth Proportional to 10,791.99, 16,187.99 and 6,171.75

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Solution

The fourth proportional to 10,791.99, 16,187.99 and 6,171.75 is: 9,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.99 : 16,187.99 = 6,171.75 : x
  2. Step 2: Convert to fraction form
    10,791.99/16,187.99 = 6,171.75/x
  3. Step 3: Cross multiply
    10,791.99x = 16,187.99 × 6,171.75
  4. Step 4: Simplify right side
    10,791.99x = 99,908,196.42
  5. Step 5: Solve for x
    x = 99,908,196.42/10,791.99
  6. Step 6: Final answer
    x = 9,257.63

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Similar ratio
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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.