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Finding the Fourth Proportional to 8,861.35, 12,226.86 and 6,736.31

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Solution

The fourth proportional to 8,861.35, 12,226.86 and 6,736.31 is: 9,294.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.35 : 12,226.86 = 6,736.31 : x
  2. Step 2: Convert to fraction form
    8,861.35/12,226.86 = 6,736.31/x
  3. Step 3: Cross multiply
    8,861.35x = 12,226.86 × 6,736.31
  4. Step 4: Simplify right side
    8,861.35x = 82,363,919.29
  5. Step 5: Solve for x
    x = 82,363,919.29/8,861.35
  6. Step 6: Final answer
    x = 9,294.74

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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.