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Finding the Fourth Proportional to 6,861.59, 9,469.46 and 4,173.86

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Solution

The fourth proportional to 6,861.59, 9,469.46 and 4,173.86 is: 5,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.59 : 9,469.46 = 4,173.86 : x
  2. Step 2: Convert to fraction form
    6,861.59/9,469.46 = 4,173.86/x
  3. Step 3: Cross multiply
    6,861.59x = 9,469.46 × 4,173.86
  4. Step 4: Simplify right side
    6,861.59x = 39,524,132.10
  5. Step 5: Solve for x
    x = 39,524,132.10/6,861.59
  6. Step 6: Final answer
    x = 5,760.20

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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.