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Finding the Fourth Proportional to 36,757.53, 55,132.52 and 11,815.47

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Solution

The fourth proportional to 36,757.53, 55,132.52 and 11,815.47 is: 17,721.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,757.53 : 55,132.52 = 11,815.47 : x
  2. Step 2: Convert to fraction form
    36,757.53/55,132.52 = 11,815.47/x
  3. Step 3: Cross multiply
    36,757.53x = 55,132.52 × 11,815.47
  4. Step 4: Simplify right side
    36,757.53x = 651,416,577.01
  5. Step 5: Solve for x
    x = 651,416,577.01/36,757.53
  6. Step 6: Final answer
    x = 17,721.99

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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.