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Finding the Fourth Proportional to 38,573.73, 57,867.08 and 12,286.53

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Solution

The fourth proportional to 38,573.73, 57,867.08 and 12,286.53 is: 18,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,573.73 : 57,867.08 = 12,286.53 : x
  2. Step 2: Convert to fraction form
    38,573.73/57,867.08 = 12,286.53/x
  3. Step 3: Cross multiply
    38,573.73x = 57,867.08 × 12,286.53
  4. Step 4: Simplify right side
    38,573.73x = 710,985,553.00
  5. Step 5: Solve for x
    x = 710,985,553.00/38,573.73
  6. Step 6: Final answer
    x = 18,431.86

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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.