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Finding the Fourth Proportional to 8,861.75, 12,229.06 and 4,883.24

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Solution

The fourth proportional to 8,861.75, 12,229.06 and 4,883.24 is: 6,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.75 : 12,229.06 = 4,883.24 : x
  2. Step 2: Convert to fraction form
    8,861.75/12,229.06 = 4,883.24/x
  3. Step 3: Cross multiply
    8,861.75x = 12,229.06 × 4,883.24
  4. Step 4: Simplify right side
    8,861.75x = 59,717,434.95
  5. Step 5: Solve for x
    x = 59,717,434.95/8,861.75
  6. Step 6: Final answer
    x = 6,738.79

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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.