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Finding the Fourth Proportional to 61,793.87, 85,279.91 and 34,936.63

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Solution

The fourth proportional to 61,793.87, 85,279.91 and 34,936.63 is: 48,215.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,793.87 : 85,279.91 = 34,936.63 : x
  2. Step 2: Convert to fraction form
    61,793.87/85,279.91 = 34,936.63/x
  3. Step 3: Cross multiply
    61,793.87x = 85,279.91 × 34,936.63
  4. Step 4: Simplify right side
    61,793.87x = 2,979,392,274.22
  5. Step 5: Solve for x
    x = 2,979,392,274.22/61,793.87
  6. Step 6: Final answer
    x = 48,215.02

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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.