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Finding the Fourth Proportional to 45,615, 68,366.34 and 32,395.80

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Solution

The fourth proportional to 45,615, 68,366.34 and 32,395.80 is: 48,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,615 : 68,366.34 = 32,395.80 : x
  2. Step 2: Convert to fraction form
    45,615/68,366.34 = 32,395.80/x
  3. Step 3: Cross multiply
    45,615x = 68,366.34 × 32,395.80
  4. Step 4: Simplify right side
    45,615x = 2,214,782,277.37
  5. Step 5: Solve for x
    x = 2,214,782,277.37/45,615
  6. Step 6: Final answer
    x = 48,553.82

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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.