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Finding the Fourth Proportional to 8,558.96, 12,820.92 and 5,919.92

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Solution

The fourth proportional to 8,558.96, 12,820.92 and 5,919.92 is: 8,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.96 : 12,820.92 = 5,919.92 : x
  2. Step 2: Convert to fraction form
    8,558.96/12,820.92 = 5,919.92/x
  3. Step 3: Cross multiply
    8,558.96x = 12,820.92 × 5,919.92
  4. Step 4: Simplify right side
    8,558.96x = 75,898,820.73
  5. Step 5: Solve for x
    x = 75,898,820.73/8,558.96
  6. Step 6: Final answer
    x = 8,867.76

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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.