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Finding the Fourth Proportional to 5,845.88, 8,067.12 and 3,486.80

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Solution

The fourth proportional to 5,845.88, 8,067.12 and 3,486.80 is: 4,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,845.88 : 8,067.12 = 3,486.80 : x
  2. Step 2: Convert to fraction form
    5,845.88/8,067.12 = 3,486.80/x
  3. Step 3: Cross multiply
    5,845.88x = 8,067.12 × 3,486.80
  4. Step 4: Simplify right side
    5,845.88x = 28,128,434.02
  5. Step 5: Solve for x
    x = 28,128,434.02/5,845.88
  6. Step 6: Final answer
    x = 4,811.67

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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.