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Finding the Fourth Proportional to 13,401.10, 20,100.80 and 4,041.44

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Solution

The fourth proportional to 13,401.10, 20,100.80 and 4,041.44 is: 6,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.10 : 20,100.80 = 4,041.44 : x
  2. Step 2: Convert to fraction form
    13,401.10/20,100.80 = 4,041.44/x
  3. Step 3: Cross multiply
    13,401.10x = 20,100.80 × 4,041.44
  4. Step 4: Simplify right side
    13,401.10x = 81,236,177.15
  5. Step 5: Solve for x
    x = 81,236,177.15/13,401.10
  6. Step 6: Final answer
    x = 6,061.90

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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.