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Finding the Fourth Proportional to 6,349.22, 9,520.87 and 1,965.66

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Solution

The fourth proportional to 6,349.22, 9,520.87 and 1,965.66 is: 2,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.22 : 9,520.87 = 1,965.66 : x
  2. Step 2: Convert to fraction form
    6,349.22/9,520.87 = 1,965.66/x
  3. Step 3: Cross multiply
    6,349.22x = 9,520.87 × 1,965.66
  4. Step 4: Simplify right side
    6,349.22x = 18,714,793.32
  5. Step 5: Solve for x
    x = 18,714,793.32/6,349.22
  6. Step 6: Final answer
    x = 2,947.57

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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.