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Finding the Fourth Proportional to 62,667, 86,488.14 and 36,171

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Solution

The fourth proportional to 62,667, 86,488.14 and 36,171 is: 49,920.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,667 : 86,488.14 = 36,171 : x
  2. Step 2: Convert to fraction form
    62,667/86,488.14 = 36,171/x
  3. Step 3: Cross multiply
    62,667x = 86,488.14 × 36,171
  4. Step 4: Simplify right side
    62,667x = 3,128,362,511.94
  5. Step 5: Solve for x
    x = 3,128,362,511.94/62,667
  6. Step 6: Final answer
    x = 49,920.41

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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.