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Finding the Fourth Proportional to 54,396.74, 81,611.82 and 25,969.97

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Solution

The fourth proportional to 54,396.74, 81,611.82 and 25,969.97 is: 38,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,396.74 : 81,611.82 = 25,969.97 : x
  2. Step 2: Convert to fraction form
    54,396.74/81,611.82 = 25,969.97/x
  3. Step 3: Cross multiply
    54,396.74x = 81,611.82 × 25,969.97
  4. Step 4: Simplify right side
    54,396.74x = 2,119,456,721.07
  5. Step 5: Solve for x
    x = 2,119,456,721.07/54,396.74
  6. Step 6: Final answer
    x = 38,962.93

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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.