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Finding the Fourth Proportional to 58,491.44, 80,717.95 and 31,633.98

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Solution

The fourth proportional to 58,491.44, 80,717.95 and 31,633.98 is: 43,654.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,491.44 : 80,717.95 = 31,633.98 : x
  2. Step 2: Convert to fraction form
    58,491.44/80,717.95 = 31,633.98/x
  3. Step 3: Cross multiply
    58,491.44x = 80,717.95 × 31,633.98
  4. Step 4: Simplify right side
    58,491.44x = 2,553,430,015.94
  5. Step 5: Solve for x
    x = 2,553,430,015.94/58,491.44
  6. Step 6: Final answer
    x = 43,654.76

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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.