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Finding the Fourth Proportional to 3,352.86, 4,629.96 and 3,168.72

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Solution

The fourth proportional to 3,352.86, 4,629.96 and 3,168.72 is: 4,375.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,352.86 : 4,629.96 = 3,168.72 : x
  2. Step 2: Convert to fraction form
    3,352.86/4,629.96 = 3,168.72/x
  3. Step 3: Cross multiply
    3,352.86x = 4,629.96 × 3,168.72
  4. Step 4: Simplify right side
    3,352.86x = 14,671,046.85
  5. Step 5: Solve for x
    x = 14,671,046.85/3,352.86
  6. Step 6: Final answer
    x = 4,375.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.