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Finding the Fourth Proportional to 38,578.88, 57,793.52 and 25,391.54

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Solution

The fourth proportional to 38,578.88, 57,793.52 and 25,391.54 is: 38,038.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578.88 : 57,793.52 = 25,391.54 : x
  2. Step 2: Convert to fraction form
    38,578.88/57,793.52 = 25,391.54/x
  3. Step 3: Cross multiply
    38,578.88x = 57,793.52 × 25,391.54
  4. Step 4: Simplify right side
    38,578.88x = 1,467,466,474.82
  5. Step 5: Solve for x
    x = 1,467,466,474.82/38,578.88
  6. Step 6: Final answer
    x = 38,038.08

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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.