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Finding the Fourth Proportional to 48,736.80, 73,105.20 and 25,408.80

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Solution

The fourth proportional to 48,736.80, 73,105.20 and 25,408.80 is: 38,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,736.80 : 73,105.20 = 25,408.80 : x
  2. Step 2: Convert to fraction form
    48,736.80/73,105.20 = 25,408.80/x
  3. Step 3: Cross multiply
    48,736.80x = 73,105.20 × 25,408.80
  4. Step 4: Simplify right side
    48,736.80x = 1,857,515,405.76
  5. Step 5: Solve for x
    x = 1,857,515,405.76/48,736.80
  6. Step 6: Final answer
    x = 38,113.20

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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.