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Finding the Fourth Proportional to 58,491.77, 80,718.57 and 31,634.03

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Solution

The fourth proportional to 58,491.77, 80,718.57 and 31,634.03 is: 43,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,491.77 : 80,718.57 = 31,634.03 : x
  2. Step 2: Convert to fraction form
    58,491.77/80,718.57 = 31,634.03/x
  3. Step 3: Cross multiply
    58,491.77x = 80,718.57 × 31,634.03
  4. Step 4: Simplify right side
    58,491.77x = 2,553,453,664.94
  5. Step 5: Solve for x
    x = 2,553,453,664.94/58,491.77
  6. Step 6: Final answer
    x = 43,654.92

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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.