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Finding the Fourth Proportional to 17,183.64, 25,773.57 and 8,391.90

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Solution

The fourth proportional to 17,183.64, 25,773.57 and 8,391.90 is: 12,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,183.64 : 25,773.57 = 8,391.90 : x
  2. Step 2: Convert to fraction form
    17,183.64/25,773.57 = 8,391.90/x
  3. Step 3: Cross multiply
    17,183.64x = 25,773.57 × 8,391.90
  4. Step 4: Simplify right side
    17,183.64x = 216,289,222.08
  5. Step 5: Solve for x
    x = 216,289,222.08/17,183.64
  6. Step 6: Final answer
    x = 12,586.93

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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.