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Finding the Fourth Proportional to 22,488.65, 33,727.08 and 6,689.43

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Solution

The fourth proportional to 22,488.65, 33,727.08 and 6,689.43 is: 10,032.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,488.65 : 33,727.08 = 6,689.43 : x
  2. Step 2: Convert to fraction form
    22,488.65/33,727.08 = 6,689.43/x
  3. Step 3: Cross multiply
    22,488.65x = 33,727.08 × 6,689.43
  4. Step 4: Simplify right side
    22,488.65x = 225,614,907.32
  5. Step 5: Solve for x
    x = 225,614,907.32/22,488.65
  6. Step 6: Final answer
    x = 10,032.39

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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.