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Finding the Fourth Proportional to 18,505.45, 27,744.49 and 9,608.01

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Solution

The fourth proportional to 18,505.45, 27,744.49 and 9,608.01 is: 14,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.45 : 27,744.49 = 9,608.01 : x
  2. Step 2: Convert to fraction form
    18,505.45/27,744.49 = 9,608.01/x
  3. Step 3: Cross multiply
    18,505.45x = 27,744.49 × 9,608.01
  4. Step 4: Simplify right side
    18,505.45x = 266,569,337.36
  5. Step 5: Solve for x
    x = 266,569,337.36/18,505.45
  6. Step 6: Final answer
    x = 14,404.91

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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.