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Finding the Fourth Proportional to 25,905.27, 38,858.73 and 7,183.71

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Solution

The fourth proportional to 25,905.27, 38,858.73 and 7,183.71 is: 10,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.27 : 38,858.73 = 7,183.71 : x
  2. Step 2: Convert to fraction form
    25,905.27/38,858.73 = 7,183.71/x
  3. Step 3: Cross multiply
    25,905.27x = 38,858.73 × 7,183.71
  4. Step 4: Simplify right side
    25,905.27x = 279,149,847.29
  5. Step 5: Solve for x
    x = 279,149,847.29/25,905.27
  6. Step 6: Final answer
    x = 10,775.79

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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.