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Finding the Fourth Proportional to 57,688.56, 86,357.48 and 36,926.64

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Solution

The fourth proportional to 57,688.56, 86,357.48 and 36,926.64 is: 55,277.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,688.56 : 86,357.48 = 36,926.64 : x
  2. Step 2: Convert to fraction form
    57,688.56/86,357.48 = 36,926.64/x
  3. Step 3: Cross multiply
    57,688.56x = 86,357.48 × 36,926.64
  4. Step 4: Simplify right side
    57,688.56x = 3,188,891,575.27
  5. Step 5: Solve for x
    x = 3,188,891,575.27/57,688.56
  6. Step 6: Final answer
    x = 55,277.71

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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.