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Finding the Fourth Proportional to 54,521.84, 81,651.53 and 36,938.36

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Solution

The fourth proportional to 54,521.84, 81,651.53 and 36,938.36 is: 55,318.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,521.84 : 81,651.53 = 36,938.36 : x
  2. Step 2: Convert to fraction form
    54,521.84/81,651.53 = 36,938.36/x
  3. Step 3: Cross multiply
    54,521.84x = 81,651.53 × 36,938.36
  4. Step 4: Simplify right side
    54,521.84x = 3,016,073,609.69
  5. Step 5: Solve for x
    x = 3,016,073,609.69/54,521.84
  6. Step 6: Final answer
    x = 55,318.63

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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.