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Finding the Fourth Proportional to 50,792.49, 76,200.90 and 21,193.86

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Solution

The fourth proportional to 50,792.49, 76,200.90 and 21,193.86 is: 31,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,792.49 : 76,200.90 = 21,193.86 : x
  2. Step 2: Convert to fraction form
    50,792.49/76,200.90 = 21,193.86/x
  3. Step 3: Cross multiply
    50,792.49x = 76,200.90 × 21,193.86
  4. Step 4: Simplify right side
    50,792.49x = 1,614,991,206.47
  5. Step 5: Solve for x
    x = 1,614,991,206.47/50,792.49
  6. Step 6: Final answer
    x = 31,795.87

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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.