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Finding the Fourth Proportional to 48,963.69, 73,376.82 and 20,845.67

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Solution

The fourth proportional to 48,963.69, 73,376.82 and 20,845.67 is: 31,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,963.69 : 73,376.82 = 20,845.67 : x
  2. Step 2: Convert to fraction form
    48,963.69/73,376.82 = 20,845.67/x
  3. Step 3: Cross multiply
    48,963.69x = 73,376.82 × 20,845.67
  4. Step 4: Simplify right side
    48,963.69x = 1,529,588,608.49
  5. Step 5: Solve for x
    x = 1,529,588,608.49/48,963.69
  6. Step 6: Final answer
    x = 31,239.24

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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.