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Finding the Fourth Proportional to 13,463.76, 20,194.20 and 3,604.04

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Solution

The fourth proportional to 13,463.76, 20,194.20 and 3,604.04 is: 5,405.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,463.76 : 20,194.20 = 3,604.04 : x
  2. Step 2: Convert to fraction form
    13,463.76/20,194.20 = 3,604.04/x
  3. Step 3: Cross multiply
    13,463.76x = 20,194.20 × 3,604.04
  4. Step 4: Simplify right side
    13,463.76x = 72,780,603.60
  5. Step 5: Solve for x
    x = 72,780,603.60/13,463.76
  6. Step 6: Final answer
    x = 5,405.67

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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.