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Finding the Fourth Proportional to 8,241.52, 12,352.86 and 2,974.12

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Solution

The fourth proportional to 8,241.52, 12,352.86 and 2,974.12 is: 4,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.52 : 12,352.86 = 2,974.12 : x
  2. Step 2: Convert to fraction form
    8,241.52/12,352.86 = 2,974.12/x
  3. Step 3: Cross multiply
    8,241.52x = 12,352.86 × 2,974.12
  4. Step 4: Simplify right side
    8,241.52x = 36,738,887.98
  5. Step 5: Solve for x
    x = 36,738,887.98/8,241.52
  6. Step 6: Final answer
    x = 4,457.78

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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.