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Finding the Fourth Proportional to 6,861.73, 9,469.22 and 3,717.91

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Solution

The fourth proportional to 6,861.73, 9,469.22 and 3,717.91 is: 5,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.73 : 9,469.22 = 3,717.91 : x
  2. Step 2: Convert to fraction form
    6,861.73/9,469.22 = 3,717.91/x
  3. Step 3: Cross multiply
    6,861.73x = 9,469.22 × 3,717.91
  4. Step 4: Simplify right side
    6,861.73x = 35,205,707.73
  5. Step 5: Solve for x
    x = 35,205,707.73/6,861.73
  6. Step 6: Final answer
    x = 5,130.73

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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.