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Finding the Fourth Proportional to 5,860.92, 8,091.60 and 3,874.80

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Solution

The fourth proportional to 5,860.92, 8,091.60 and 3,874.80 is: 5,349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,860.92 : 8,091.60 = 3,874.80 : x
  2. Step 2: Convert to fraction form
    5,860.92/8,091.60 = 3,874.80/x
  3. Step 3: Cross multiply
    5,860.92x = 8,091.60 × 3,874.80
  4. Step 4: Simplify right side
    5,860.92x = 31,353,331.68
  5. Step 5: Solve for x
    x = 31,353,331.68/5,860.92
  6. Step 6: Final answer
    x = 5,349.56

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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.