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Finding the Fourth Proportional to 8,558.44, 12,838.62 and 3,944.68

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Solution

The fourth proportional to 8,558.44, 12,838.62 and 3,944.68 is: 5,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.44 : 12,838.62 = 3,944.68 : x
  2. Step 2: Convert to fraction form
    8,558.44/12,838.62 = 3,944.68/x
  3. Step 3: Cross multiply
    8,558.44x = 12,838.62 × 3,944.68
  4. Step 4: Simplify right side
    8,558.44x = 50,644,247.54
  5. Step 5: Solve for x
    x = 50,644,247.54/8,558.44
  6. Step 6: Final answer
    x = 5,917.46

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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.