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Finding the Fourth Proportional to 17,695.20, 26,542.72 and 8,433.12

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Solution

The fourth proportional to 17,695.20, 26,542.72 and 8,433.12 is: 12,649.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,695.20 : 26,542.72 = 8,433.12 : x
  2. Step 2: Convert to fraction form
    17,695.20/26,542.72 = 8,433.12/x
  3. Step 3: Cross multiply
    17,695.20x = 26,542.72 × 8,433.12
  4. Step 4: Simplify right side
    17,695.20x = 223,837,942.89
  5. Step 5: Solve for x
    x = 223,837,942.89/17,695.20
  6. Step 6: Final answer
    x = 12,649.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.