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Finding the Fourth Proportional to 37,270.80, 55,936.80 and 36,979.20

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Solution

The fourth proportional to 37,270.80, 55,936.80 and 36,979.20 is: 55,499.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,270.80 : 55,936.80 = 36,979.20 : x
  2. Step 2: Convert to fraction form
    37,270.80/55,936.80 = 36,979.20/x
  3. Step 3: Cross multiply
    37,270.80x = 55,936.80 × 36,979.20
  4. Step 4: Simplify right side
    37,270.80x = 2,068,498,114.56
  5. Step 5: Solve for x
    x = 2,068,498,114.56/37,270.80
  6. Step 6: Final answer
    x = 55,499.16

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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.