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Finding the Fourth Proportional to 21,687.73, 32,522.41 and 6,892.68

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Solution

The fourth proportional to 21,687.73, 32,522.41 and 6,892.68 is: 10,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687.73 : 32,522.41 = 6,892.68 : x
  2. Step 2: Convert to fraction form
    21,687.73/32,522.41 = 6,892.68/x
  3. Step 3: Cross multiply
    21,687.73x = 32,522.41 × 6,892.68
  4. Step 4: Simplify right side
    21,687.73x = 224,166,564.96
  5. Step 5: Solve for x
    x = 224,166,564.96/21,687.73
  6. Step 6: Final answer
    x = 10,336.10

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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.