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Finding the Fourth Proportional to 7,168.85, 10,745.16 and 3,651.43

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Solution

The fourth proportional to 7,168.85, 10,745.16 and 3,651.43 is: 5,473.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.85 : 10,745.16 = 3,651.43 : x
  2. Step 2: Convert to fraction form
    7,168.85/10,745.16 = 3,651.43/x
  3. Step 3: Cross multiply
    7,168.85x = 10,745.16 × 3,651.43
  4. Step 4: Simplify right side
    7,168.85x = 39,235,199.58
  5. Step 5: Solve for x
    x = 39,235,199.58/7,168.85
  6. Step 6: Final answer
    x = 5,473.01

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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.