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Finding the Fourth Proportional to 8,556.96, 12,817.92 and 5,917.92

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Solution

The fourth proportional to 8,556.96, 12,817.92 and 5,917.92 is: 8,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.96 : 12,817.92 = 5,917.92 : x
  2. Step 2: Convert to fraction form
    8,556.96/12,817.92 = 5,917.92/x
  3. Step 3: Cross multiply
    8,556.96x = 12,817.92 × 5,917.92
  4. Step 4: Simplify right side
    8,556.96x = 75,855,425.13
  5. Step 5: Solve for x
    x = 75,855,425.13/8,556.96
  6. Step 6: Final answer
    x = 8,864.76

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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.