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Finding the Fourth Proportional to 29,103, 40,160.25 and 17,163.60

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Solution

The fourth proportional to 29,103, 40,160.25 and 17,163.60 is: 23,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,103 : 40,160.25 = 17,163.60 : x
  2. Step 2: Convert to fraction form
    29,103/40,160.25 = 17,163.60/x
  3. Step 3: Cross multiply
    29,103x = 40,160.25 × 17,163.60
  4. Step 4: Simplify right side
    29,103x = 689,294,466.90
  5. Step 5: Solve for x
    x = 689,294,466.90/29,103
  6. Step 6: Final answer
    x = 23,684.65

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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.