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Finding the Fourth Proportional to 8,561.68, 12,842.33 and 3,944.68

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Solution

The fourth proportional to 8,561.68, 12,842.33 and 3,944.68 is: 5,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.68 : 12,842.33 = 3,944.68 : x
  2. Step 2: Convert to fraction form
    8,561.68/12,842.33 = 3,944.68/x
  3. Step 3: Cross multiply
    8,561.68x = 12,842.33 × 3,944.68
  4. Step 4: Simplify right side
    8,561.68x = 50,658,882.30
  5. Step 5: Solve for x
    x = 50,658,882.30/8,561.68
  6. Step 6: Final answer
    x = 5,916.93

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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.