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Finding the Fourth Proportional to 17,904.68, 26,857.02 and 5,424.56

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Solution

The fourth proportional to 17,904.68, 26,857.02 and 5,424.56 is: 8,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,904.68 : 26,857.02 = 5,424.56 : x
  2. Step 2: Convert to fraction form
    17,904.68/26,857.02 = 5,424.56/x
  3. Step 3: Cross multiply
    17,904.68x = 26,857.02 × 5,424.56
  4. Step 4: Simplify right side
    17,904.68x = 145,687,516.41
  5. Step 5: Solve for x
    x = 145,687,516.41/17,904.68
  6. Step 6: Final answer
    x = 8,136.84

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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.