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Finding the Fourth Proportional to 8,961.37, 13,440.04 and 5,863.12

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Solution

The fourth proportional to 8,961.37, 13,440.04 and 5,863.12 is: 8,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.37 : 13,440.04 = 5,863.12 : x
  2. Step 2: Convert to fraction form
    8,961.37/13,440.04 = 5,863.12/x
  3. Step 3: Cross multiply
    8,961.37x = 13,440.04 × 5,863.12
  4. Step 4: Simplify right side
    8,961.37x = 78,800,567.32
  5. Step 5: Solve for x
    x = 78,800,567.32/8,961.37
  6. Step 6: Final answer
    x = 8,793.36

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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.