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Finding the Fourth Proportional to 48,744.70, 73,059.45 and 20,664.70

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Solution

The fourth proportional to 48,744.70, 73,059.45 and 20,664.70 is: 30,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,744.70 : 73,059.45 = 20,664.70 : x
  2. Step 2: Convert to fraction form
    48,744.70/73,059.45 = 20,664.70/x
  3. Step 3: Cross multiply
    48,744.70x = 73,059.45 × 20,664.70
  4. Step 4: Simplify right side
    48,744.70x = 1,509,751,616.42
  5. Step 5: Solve for x
    x = 1,509,751,616.42/48,744.70
  6. Step 6: Final answer
    x = 30,972.63

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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.