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Finding the Fourth Proportional to 17,490.65, 26,243.73 and 9,168.68

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Solution

The fourth proportional to 17,490.65, 26,243.73 and 9,168.68 is: 13,757.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,490.65 : 26,243.73 = 9,168.68 : x
  2. Step 2: Convert to fraction form
    17,490.65/26,243.73 = 9,168.68/x
  3. Step 3: Cross multiply
    17,490.65x = 26,243.73 × 9,168.68
  4. Step 4: Simplify right side
    17,490.65x = 240,620,362.38
  5. Step 5: Solve for x
    x = 240,620,362.38/17,490.65
  6. Step 6: Final answer
    x = 13,757.09

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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.