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Finding the Fourth Proportional to 6,418.62, 8,861.94 and 4,296.88

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Solution

The fourth proportional to 6,418.62, 8,861.94 and 4,296.88 is: 5,932.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.62 : 8,861.94 = 4,296.88 : x
  2. Step 2: Convert to fraction form
    6,418.62/8,861.94 = 4,296.88/x
  3. Step 3: Cross multiply
    6,418.62x = 8,861.94 × 4,296.88
  4. Step 4: Simplify right side
    6,418.62x = 38,078,692.75
  5. Step 5: Solve for x
    x = 38,078,692.75/6,418.62
  6. Step 6: Final answer
    x = 5,932.54

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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.