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Finding the Fourth Proportional to 58,508.52, 80,741.85 and 31,650.96

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Solution

The fourth proportional to 58,508.52, 80,741.85 and 31,650.96 is: 43,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,508.52 : 80,741.85 = 31,650.96 : x
  2. Step 2: Convert to fraction form
    58,508.52/80,741.85 = 31,650.96/x
  3. Step 3: Cross multiply
    58,508.52x = 80,741.85 × 31,650.96
  4. Step 4: Simplify right side
    58,508.52x = 2,555,557,064.68
  5. Step 5: Solve for x
    x = 2,555,557,064.68/58,508.52
  6. Step 6: Final answer
    x = 43,678.37

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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.