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Finding the Fourth Proportional to 69,722.91, 96,217.81 and 37,891.94

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Solution

The fourth proportional to 69,722.91, 96,217.81 and 37,891.94 is: 52,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,722.91 : 96,217.81 = 37,891.94 : x
  2. Step 2: Convert to fraction form
    69,722.91/96,217.81 = 37,891.94/x
  3. Step 3: Cross multiply
    69,722.91x = 96,217.81 × 37,891.94
  4. Step 4: Simplify right side
    69,722.91x = 3,645,878,907.63
  5. Step 5: Solve for x
    x = 3,645,878,907.63/69,722.91
  6. Step 6: Final answer
    x = 52,290.97

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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.