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Finding the Fourth Proportional to 38,480.60, 57,720.90 and 37,616.60

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Solution

The fourth proportional to 38,480.60, 57,720.90 and 37,616.60 is: 56,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.60 : 57,720.90 = 37,616.60 : x
  2. Step 2: Convert to fraction form
    38,480.60/57,720.90 = 37,616.60/x
  3. Step 3: Cross multiply
    38,480.60x = 57,720.90 × 37,616.60
  4. Step 4: Simplify right side
    38,480.60x = 2,171,264,006.94
  5. Step 5: Solve for x
    x = 2,171,264,006.94/38,480.60
  6. Step 6: Final answer
    x = 56,424.90

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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.