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Finding the Fourth Proportional to 8,039.76, 12,063.72 and 3,883.32

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Solution

The fourth proportional to 8,039.76, 12,063.72 and 3,883.32 is: 5,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.76 : 12,063.72 = 3,883.32 : x
  2. Step 2: Convert to fraction form
    8,039.76/12,063.72 = 3,883.32/x
  3. Step 3: Cross multiply
    8,039.76x = 12,063.72 × 3,883.32
  4. Step 4: Simplify right side
    8,039.76x = 46,847,299.71
  5. Step 5: Solve for x
    x = 46,847,299.71/8,039.76
  6. Step 6: Final answer
    x = 5,826.96

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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.