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Finding the Fourth Proportional to 57,418.42, 86,152.11 and 22,382.74

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Solution

The fourth proportional to 57,418.42, 86,152.11 and 22,382.74 is: 33,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,418.42 : 86,152.11 = 22,382.74 : x
  2. Step 2: Convert to fraction form
    57,418.42/86,152.11 = 22,382.74/x
  3. Step 3: Cross multiply
    57,418.42x = 86,152.11 × 22,382.74
  4. Step 4: Simplify right side
    57,418.42x = 1,928,320,278.58
  5. Step 5: Solve for x
    x = 1,928,320,278.58/57,418.42
  6. Step 6: Final answer
    x = 33,583.65

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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.