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Finding the Fourth Proportional to 48,989.70, 73,375.20 and 37,860.30

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Solution

The fourth proportional to 48,989.70, 73,375.20 and 37,860.30 is: 56,705.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,989.70 : 73,375.20 = 37,860.30 : x
  2. Step 2: Convert to fraction form
    48,989.70/73,375.20 = 37,860.30/x
  3. Step 3: Cross multiply
    48,989.70x = 73,375.20 × 37,860.30
  4. Step 4: Simplify right side
    48,989.70x = 2,778,007,084.56
  5. Step 5: Solve for x
    x = 2,778,007,084.56/48,989.70
  6. Step 6: Final answer
    x = 56,705.94

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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.