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Finding the Fourth Proportional to 29,059.75, 40,103.47 and 17,133.31

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Solution

The fourth proportional to 29,059.75, 40,103.47 and 17,133.31 is: 23,644.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,059.75 : 40,103.47 = 17,133.31 : x
  2. Step 2: Convert to fraction form
    29,059.75/40,103.47 = 17,133.31/x
  3. Step 3: Cross multiply
    29,059.75x = 40,103.47 × 17,133.31
  4. Step 4: Simplify right side
    29,059.75x = 687,105,183.59
  5. Step 5: Solve for x
    x = 687,105,183.59/29,059.75
  6. Step 6: Final answer
    x = 23,644.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.