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Finding the Fourth Proportional to 62,462.58, 86,198.61 and 38,583.78

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Solution

The fourth proportional to 62,462.58, 86,198.61 and 38,583.78 is: 53,245.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,462.58 : 86,198.61 = 38,583.78 : x
  2. Step 2: Convert to fraction form
    62,462.58/86,198.61 = 38,583.78/x
  3. Step 3: Cross multiply
    62,462.58x = 86,198.61 × 38,583.78
  4. Step 4: Simplify right side
    62,462.58x = 3,325,868,204.55
  5. Step 5: Solve for x
    x = 3,325,868,204.55/62,462.58
  6. Step 6: Final answer
    x = 53,245.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.