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Finding the Fourth Proportional to 21,974.94, 32,963.33 and 6,392.57

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Solution

The fourth proportional to 21,974.94, 32,963.33 and 6,392.57 is: 9,589.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.94 : 32,963.33 = 6,392.57 : x
  2. Step 2: Convert to fraction form
    21,974.94/32,963.33 = 6,392.57/x
  3. Step 3: Cross multiply
    21,974.94x = 32,963.33 × 6,392.57
  4. Step 4: Simplify right side
    21,974.94x = 210,720,333.28
  5. Step 5: Solve for x
    x = 210,720,333.28/21,974.94
  6. Step 6: Final answer
    x = 9,589.12

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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.