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Finding the Fourth Proportional to 38,481.81, 57,645.90 and 25,294.20

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Solution

The fourth proportional to 38,481.81, 57,645.90 and 25,294.20 is: 37,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.81 : 57,645.90 = 25,294.20 : x
  2. Step 2: Convert to fraction form
    38,481.81/57,645.90 = 25,294.20/x
  3. Step 3: Cross multiply
    38,481.81x = 57,645.90 × 25,294.20
  4. Step 4: Simplify right side
    38,481.81x = 1,458,106,923.78
  5. Step 5: Solve for x
    x = 1,458,106,923.78/38,481.81
  6. Step 6: Final answer
    x = 37,890.81

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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.