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Finding the Fourth Proportional to 25,745.52, 38,619.38 and 9,105.69

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Solution

The fourth proportional to 25,745.52, 38,619.38 and 9,105.69 is: 13,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,745.52 : 38,619.38 = 9,105.69 : x
  2. Step 2: Convert to fraction form
    25,745.52/38,619.38 = 9,105.69/x
  3. Step 3: Cross multiply
    25,745.52x = 38,619.38 × 9,105.69
  4. Step 4: Simplify right side
    25,745.52x = 351,656,102.27
  5. Step 5: Solve for x
    x = 351,656,102.27/25,745.52
  6. Step 6: Final answer
    x = 13,658.92

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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.