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Finding the Fourth Proportional to 57,676.75, 86,534.60 and 36,345.53

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Solution

The fourth proportional to 57,676.75, 86,534.60 and 36,345.53 is: 54,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,676.75 : 86,534.60 = 36,345.53 : x
  2. Step 2: Convert to fraction form
    57,676.75/86,534.60 = 36,345.53/x
  3. Step 3: Cross multiply
    57,676.75x = 86,534.60 × 36,345.53
  4. Step 4: Simplify right side
    57,676.75x = 3,145,145,754.86
  5. Step 5: Solve for x
    x = 3,145,145,754.86/57,676.75
  6. Step 6: Final answer
    x = 54,530.56

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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.