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Finding the Fourth Proportional to 7,636.92, 11,447.19 and 5,003.43

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Solution

The fourth proportional to 7,636.92, 11,447.19 and 5,003.43 is: 7,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636.92 : 11,447.19 = 5,003.43 : x
  2. Step 2: Convert to fraction form
    7,636.92/11,447.19 = 5,003.43/x
  3. Step 3: Cross multiply
    7,636.92x = 11,447.19 × 5,003.43
  4. Step 4: Simplify right side
    7,636.92x = 57,275,213.86
  5. Step 5: Solve for x
    x = 57,275,213.86/7,636.92
  6. Step 6: Final answer
    x = 7,499.78

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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.