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Finding the Fourth Proportional to 62,672.08, 86,487.24 and 38,794

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Solution

The fourth proportional to 62,672.08, 86,487.24 and 38,794 is: 53,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,672.08 : 86,487.24 = 38,794 : x
  2. Step 2: Convert to fraction form
    62,672.08/86,487.24 = 38,794/x
  3. Step 3: Cross multiply
    62,672.08x = 86,487.24 × 38,794
  4. Step 4: Simplify right side
    62,672.08x = 3,355,185,988.56
  5. Step 5: Solve for x
    x = 3,355,185,988.56/62,672.08
  6. Step 6: Final answer
    x = 53,535.58

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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.