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Finding the Fourth Proportional to 8,560.96, 12,823.92 and 5,921.92

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Solution

The fourth proportional to 8,560.96, 12,823.92 and 5,921.92 is: 8,870.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.96 : 12,823.92 = 5,921.92 : x
  2. Step 2: Convert to fraction form
    8,560.96/12,823.92 = 5,921.92/x
  3. Step 3: Cross multiply
    8,560.96x = 12,823.92 × 5,921.92
  4. Step 4: Simplify right side
    8,560.96x = 75,942,228.33
  5. Step 5: Solve for x
    x = 75,942,228.33/8,560.96
  6. Step 6: Final answer
    x = 8,870.76

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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.