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Finding the Fourth Proportional to 48,872.80, 73,309.20 and 17,696.80

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Solution

The fourth proportional to 48,872.80, 73,309.20 and 17,696.80 is: 26,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,872.80 : 73,309.20 = 17,696.80 : x
  2. Step 2: Convert to fraction form
    48,872.80/73,309.20 = 17,696.80/x
  3. Step 3: Cross multiply
    48,872.80x = 73,309.20 × 17,696.80
  4. Step 4: Simplify right side
    48,872.80x = 1,297,338,250.56
  5. Step 5: Solve for x
    x = 1,297,338,250.56/48,872.80
  6. Step 6: Final answer
    x = 26,545.20

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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.