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Finding the Fourth Proportional to 62,406.06, 86,138.04 and 36,921.30

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Solution

The fourth proportional to 62,406.06, 86,138.04 and 36,921.30 is: 50,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,406.06 : 86,138.04 = 36,921.30 : x
  2. Step 2: Convert to fraction form
    62,406.06/86,138.04 = 36,921.30/x
  3. Step 3: Cross multiply
    62,406.06x = 86,138.04 × 36,921.30
  4. Step 4: Simplify right side
    62,406.06x = 3,180,328,416.25
  5. Step 5: Solve for x
    x = 3,180,328,416.25/62,406.06
  6. Step 6: Final answer
    x = 50,961.85

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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.