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Finding the Fourth Proportional to 29,419.61, 44,129.39 and 11,889.43

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Solution

The fourth proportional to 29,419.61, 44,129.39 and 11,889.43 is: 17,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,419.61 : 44,129.39 = 11,889.43 : x
  2. Step 2: Convert to fraction form
    29,419.61/44,129.39 = 11,889.43/x
  3. Step 3: Cross multiply
    29,419.61x = 44,129.39 × 11,889.43
  4. Step 4: Simplify right side
    29,419.61x = 524,673,123.58
  5. Step 5: Solve for x
    x = 524,673,123.58/29,419.61
  6. Step 6: Final answer
    x = 17,834.13

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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.