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Finding the Fourth Proportional to 50,620.20, 75,976.20 and 25,677.60

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Solution

The fourth proportional to 50,620.20, 75,976.20 and 25,677.60 is: 38,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,620.20 : 75,976.20 = 25,677.60 : x
  2. Step 2: Convert to fraction form
    50,620.20/75,976.20 = 25,677.60/x
  3. Step 3: Cross multiply
    50,620.20x = 75,976.20 × 25,677.60
  4. Step 4: Simplify right side
    50,620.20x = 1,950,886,473.12
  5. Step 5: Solve for x
    x = 1,950,886,473.12/50,620.20
  6. Step 6: Final answer
    x = 38,539.68

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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.