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Finding the Fourth Proportional to 18,654.73, 27,981.17 and 6,967.04

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Solution

The fourth proportional to 18,654.73, 27,981.17 and 6,967.04 is: 10,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.73 : 27,981.17 = 6,967.04 : x
  2. Step 2: Convert to fraction form
    18,654.73/27,981.17 = 6,967.04/x
  3. Step 3: Cross multiply
    18,654.73x = 27,981.17 × 6,967.04
  4. Step 4: Simplify right side
    18,654.73x = 194,945,808.15
  5. Step 5: Solve for x
    x = 194,945,808.15/18,654.73
  6. Step 6: Final answer
    x = 10,450.21

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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.