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Finding the Fourth Proportional to 19,351.39, 29,040.03 and 7,039.39

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Solution

The fourth proportional to 19,351.39, 29,040.03 and 7,039.39 is: 10,563.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,351.39 : 29,040.03 = 7,039.39 : x
  2. Step 2: Convert to fraction form
    19,351.39/29,040.03 = 7,039.39/x
  3. Step 3: Cross multiply
    19,351.39x = 29,040.03 × 7,039.39
  4. Step 4: Simplify right side
    19,351.39x = 204,424,096.78
  5. Step 5: Solve for x
    x = 204,424,096.78/19,351.39
  6. Step 6: Final answer
    x = 10,563.79

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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.