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Finding the Fourth Proportional to 8,863.10, 12,230.60 and 4,883.43

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Solution

The fourth proportional to 8,863.10, 12,230.60 and 4,883.43 is: 6,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.10 : 12,230.60 = 4,883.43 : x
  2. Step 2: Convert to fraction form
    8,863.10/12,230.60 = 4,883.43/x
  3. Step 3: Cross multiply
    8,863.10x = 12,230.60 × 4,883.43
  4. Step 4: Simplify right side
    8,863.10x = 59,727,254.54
  5. Step 5: Solve for x
    x = 59,727,254.54/8,863.10
  6. Step 6: Final answer
    x = 6,738.87

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Half scale
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Double scale
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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.