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Finding the Fourth Proportional to 48,940.60, 73,360.74 and 33,147.28

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Solution

The fourth proportional to 48,940.60, 73,360.74 and 33,147.28 is: 49,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,940.60 : 73,360.74 = 33,147.28 : x
  2. Step 2: Convert to fraction form
    48,940.60/73,360.74 = 33,147.28/x
  3. Step 3: Cross multiply
    48,940.60x = 73,360.74 × 33,147.28
  4. Step 4: Simplify right side
    48,940.60x = 2,431,708,989.79
  5. Step 5: Solve for x
    x = 2,431,708,989.79/48,940.60
  6. Step 6: Final answer
    x = 49,686.95

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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.