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Finding the Fourth Proportional to 6,761.92, 10,143.00 and 5,376.21

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Solution

The fourth proportional to 6,761.92, 10,143.00 and 5,376.21 is: 8,064.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.92 : 10,143.00 = 5,376.21 : x
  2. Step 2: Convert to fraction form
    6,761.92/10,143.00 = 5,376.21/x
  3. Step 3: Cross multiply
    6,761.92x = 10,143.00 × 5,376.21
  4. Step 4: Simplify right side
    6,761.92x = 54,530,871.15
  5. Step 5: Solve for x
    x = 54,530,871.15/6,761.92
  6. Step 6: Final answer
    x = 8,064.41

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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.