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Finding the Fourth Proportional to 61,876.44, 85,388.94 and 33,581.88

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Solution

The fourth proportional to 61,876.44, 85,388.94 and 33,581.88 is: 46,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,876.44 : 85,388.94 = 33,581.88 : x
  2. Step 2: Convert to fraction form
    61,876.44/85,388.94 = 33,581.88/x
  3. Step 3: Cross multiply
    61,876.44x = 85,388.94 × 33,581.88
  4. Step 4: Simplify right side
    61,876.44x = 2,867,521,136.41
  5. Step 5: Solve for x
    x = 2,867,521,136.41/61,876.44
  6. Step 6: Final answer
    x = 46,342.70

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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.