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Finding the Fourth Proportional to 21,957.50, 32,936.22 and 6,375.13

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Solution

The fourth proportional to 21,957.50, 32,936.22 and 6,375.13 is: 9,562.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.50 : 32,936.22 = 6,375.13 : x
  2. Step 2: Convert to fraction form
    21,957.50/32,936.22 = 6,375.13/x
  3. Step 3: Cross multiply
    21,957.50x = 32,936.22 × 6,375.13
  4. Step 4: Simplify right side
    21,957.50x = 209,972,601.87
  5. Step 5: Solve for x
    x = 209,972,601.87/21,957.50
  6. Step 6: Final answer
    x = 9,562.68

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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.