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Finding the Fourth Proportional to 57,818.14, 86,741.01 and 18,375.32

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Solution

The fourth proportional to 57,818.14, 86,741.01 and 18,375.32 is: 27,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,818.14 : 86,741.01 = 18,375.32 : x
  2. Step 2: Convert to fraction form
    57,818.14/86,741.01 = 18,375.32/x
  3. Step 3: Cross multiply
    57,818.14x = 86,741.01 × 18,375.32
  4. Step 4: Simplify right side
    57,818.14x = 1,593,894,032.73
  5. Step 5: Solve for x
    x = 1,593,894,032.73/57,818.14
  6. Step 6: Final answer
    x = 27,567.37

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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.