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Finding the Fourth Proportional to 57,488.63, 86,232.97 and 25,861.75

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Solution

The fourth proportional to 57,488.63, 86,232.97 and 25,861.75 is: 38,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,488.63 : 86,232.97 = 25,861.75 : x
  2. Step 2: Convert to fraction form
    57,488.63/86,232.97 = 25,861.75/x
  3. Step 3: Cross multiply
    57,488.63x = 86,232.97 × 25,861.75
  4. Step 4: Simplify right side
    57,488.63x = 2,230,135,886.44
  5. Step 5: Solve for x
    x = 2,230,135,886.44/57,488.63
  6. Step 6: Final answer
    x = 38,792.64

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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.