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Finding the Fourth Proportional to 13,600.46, 20,401.46 and 3,739.52

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Solution

The fourth proportional to 13,600.46, 20,401.46 and 3,739.52 is: 5,609.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.46 : 20,401.46 = 3,739.52 : x
  2. Step 2: Convert to fraction form
    13,600.46/20,401.46 = 3,739.52/x
  3. Step 3: Cross multiply
    13,600.46x = 20,401.46 × 3,739.52
  4. Step 4: Simplify right side
    13,600.46x = 76,291,649.00
  5. Step 5: Solve for x
    x = 76,291,649.00/13,600.46
  6. Step 6: Final answer
    x = 5,609.49

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1.5x scale

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.