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Finding the Fourth Proportional to 25,855.77, 38,789.73 and 8,324.94

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Solution

The fourth proportional to 25,855.77, 38,789.73 and 8,324.94 is: 12,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,855.77 : 38,789.73 = 8,324.94 : x
  2. Step 2: Convert to fraction form
    25,855.77/38,789.73 = 8,324.94/x
  3. Step 3: Cross multiply
    25,855.77x = 38,789.73 × 8,324.94
  4. Step 4: Simplify right side
    25,855.77x = 322,922,174.87
  5. Step 5: Solve for x
    x = 322,922,174.87/25,855.77
  6. Step 6: Final answer
    x = 12,489.37

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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.