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Finding the Fourth Proportional to 11,309.74, 16,958.81 and 5,975.78

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Solution

The fourth proportional to 11,309.74, 16,958.81 and 5,975.78 is: 8,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.74 : 16,958.81 = 5,975.78 : x
  2. Step 2: Convert to fraction form
    11,309.74/16,958.81 = 5,975.78/x
  3. Step 3: Cross multiply
    11,309.74x = 16,958.81 × 5,975.78
  4. Step 4: Simplify right side
    11,309.74x = 101,342,174.96
  5. Step 5: Solve for x
    x = 101,342,174.96/11,309.74
  6. Step 6: Final answer
    x = 8,960.61

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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.