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Finding the Fourth Proportional to 54,272.84, 74,922.17 and 36,379.53

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Solution

The fourth proportional to 54,272.84, 74,922.17 and 36,379.53 is: 50,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,272.84 : 74,922.17 = 36,379.53 : x
  2. Step 2: Convert to fraction form
    54,272.84/74,922.17 = 36,379.53/x
  3. Step 3: Cross multiply
    54,272.84x = 74,922.17 × 36,379.53
  4. Step 4: Simplify right side
    54,272.84x = 2,725,633,149.28
  5. Step 5: Solve for x
    x = 2,725,633,149.28/54,272.84
  6. Step 6: Final answer
    x = 50,220.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.