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Finding the Fourth Proportional to 48,803.59, 73,216.66 and 20,724.56

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Solution

The fourth proportional to 48,803.59, 73,216.66 and 20,724.56 is: 31,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,803.59 : 73,216.66 = 20,724.56 : x
  2. Step 2: Convert to fraction form
    48,803.59/73,216.66 = 20,724.56/x
  3. Step 3: Cross multiply
    48,803.59x = 73,216.66 × 20,724.56
  4. Step 4: Simplify right side
    48,803.59x = 1,517,382,958.70
  5. Step 5: Solve for x
    x = 1,517,382,958.70/48,803.59
  6. Step 6: Final answer
    x = 31,091.63

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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.