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Finding the Fourth Proportional to 38,671.62, 58,006.37 and 12,375.99

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Solution

The fourth proportional to 38,671.62, 58,006.37 and 12,375.99 is: 18,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,671.62 : 58,006.37 = 12,375.99 : x
  2. Step 2: Convert to fraction form
    38,671.62/58,006.37 = 12,375.99/x
  3. Step 3: Cross multiply
    38,671.62x = 58,006.37 × 12,375.99
  4. Step 4: Simplify right side
    38,671.62x = 717,886,255.06
  5. Step 5: Solve for x
    x = 717,886,255.06/38,671.62
  6. Step 6: Final answer
    x = 18,563.65

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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.