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Finding the Fourth Proportional to 54,759.46, 82,148.04 and 21,461.46

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Solution

The fourth proportional to 54,759.46, 82,148.04 and 21,461.46 is: 32,195.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,759.46 : 82,148.04 = 21,461.46 : x
  2. Step 2: Convert to fraction form
    54,759.46/82,148.04 = 21,461.46/x
  3. Step 3: Cross multiply
    54,759.46x = 82,148.04 × 21,461.46
  4. Step 4: Simplify right side
    54,759.46x = 1,763,016,874.54
  5. Step 5: Solve for x
    x = 1,763,016,874.54/54,759.46
  6. Step 6: Final answer
    x = 32,195.66

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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.