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Finding the Fourth Proportional to 29,419.34, 44,128.99 and 11,889.18

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Solution

The fourth proportional to 29,419.34, 44,128.99 and 11,889.18 is: 17,833.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,419.34 : 44,128.99 = 11,889.18 : x
  2. Step 2: Convert to fraction form
    29,419.34/44,128.99 = 11,889.18/x
  3. Step 3: Cross multiply
    29,419.34x = 44,128.99 × 11,889.18
  4. Step 4: Simplify right side
    29,419.34x = 524,657,505.33
  5. Step 5: Solve for x
    x = 524,657,505.33/29,419.34
  6. Step 6: Final answer
    x = 17,833.76

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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.