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Finding the Fourth Proportional to 41,163.60, 61,745.40 and 13,461.60

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Solution

The fourth proportional to 41,163.60, 61,745.40 and 13,461.60 is: 20,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,163.60 : 61,745.40 = 13,461.60 : x
  2. Step 2: Convert to fraction form
    41,163.60/61,745.40 = 13,461.60/x
  3. Step 3: Cross multiply
    41,163.60x = 61,745.40 × 13,461.60
  4. Step 4: Simplify right side
    41,163.60x = 831,191,876.64
  5. Step 5: Solve for x
    x = 831,191,876.64/41,163.60
  6. Step 6: Final answer
    x = 20,192.40

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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.