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Finding the Fourth Proportional to 61,236.73, 91,890.53 and 25,694.88

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Solution

The fourth proportional to 61,236.73, 91,890.53 and 25,694.88 is: 38,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,236.73 : 91,890.53 = 25,694.88 : x
  2. Step 2: Convert to fraction form
    61,236.73/91,890.53 = 25,694.88/x
  3. Step 3: Cross multiply
    61,236.73x = 91,890.53 × 25,694.88
  4. Step 4: Simplify right side
    61,236.73x = 2,361,116,141.49
  5. Step 5: Solve for x
    x = 2,361,116,141.49/61,236.73
  6. Step 6: Final answer
    x = 38,557.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.