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Finding the Fourth Proportional to 7,183.74, 9,910.74 and 5,299.86

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Solution

The fourth proportional to 7,183.74, 9,910.74 and 5,299.86 is: 7,311.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.74 : 9,910.74 = 5,299.86 : x
  2. Step 2: Convert to fraction form
    7,183.74/9,910.74 = 5,299.86/x
  3. Step 3: Cross multiply
    7,183.74x = 9,910.74 × 5,299.86
  4. Step 4: Simplify right side
    7,183.74x = 52,525,534.50
  5. Step 5: Solve for x
    x = 52,525,534.50/7,183.74
  6. Step 6: Final answer
    x = 7,311.73

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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.