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Finding the Fourth Proportional to 11,957.87, 17,936.20 and 3,637.70

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Solution

The fourth proportional to 11,957.87, 17,936.20 and 3,637.70 is: 5,456.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,957.87 : 17,936.20 = 3,637.70 : x
  2. Step 2: Convert to fraction form
    11,957.87/17,936.20 = 3,637.70/x
  3. Step 3: Cross multiply
    11,957.87x = 17,936.20 × 3,637.70
  4. Step 4: Simplify right side
    11,957.87x = 65,246,514.74
  5. Step 5: Solve for x
    x = 65,246,514.74/11,957.87
  6. Step 6: Final answer
    x = 5,456.37

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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.