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Finding the Fourth Proportional to 57,981.44, 79,999.98 and 36,752.96

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Solution

The fourth proportional to 57,981.44, 79,999.98 and 36,752.96 is: 50,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,981.44 : 79,999.98 = 36,752.96 : x
  2. Step 2: Convert to fraction form
    57,981.44/79,999.98 = 36,752.96/x
  3. Step 3: Cross multiply
    57,981.44x = 79,999.98 × 36,752.96
  4. Step 4: Simplify right side
    57,981.44x = 2,940,236,064.94
  5. Step 5: Solve for x
    x = 2,940,236,064.94/57,981.44
  6. Step 6: Final answer
    x = 50,709.95

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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.