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Finding the Fourth Proportional to 6,636.86, 9,960.15 and 5,353.82

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Solution

The fourth proportional to 6,636.86, 9,960.15 and 5,353.82 is: 8,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.86 : 9,960.15 = 5,353.82 : x
  2. Step 2: Convert to fraction form
    6,636.86/9,960.15 = 5,353.82/x
  3. Step 3: Cross multiply
    6,636.86x = 9,960.15 × 5,353.82
  4. Step 4: Simplify right side
    6,636.86x = 53,324,850.27
  5. Step 5: Solve for x
    x = 53,324,850.27/6,636.86
  6. Step 6: Final answer
    x = 8,034.65

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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.