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Finding the Fourth Proportional to 6,540.88, 9,812.94 and 5,372.86

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Solution

The fourth proportional to 6,540.88, 9,812.94 and 5,372.86 is: 8,060.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.88 : 9,812.94 = 5,372.86 : x
  2. Step 2: Convert to fraction form
    6,540.88/9,812.94 = 5,372.86/x
  3. Step 3: Cross multiply
    6,540.88x = 9,812.94 × 5,372.86
  4. Step 4: Simplify right side
    6,540.88x = 52,723,552.81
  5. Step 5: Solve for x
    x = 52,723,552.81/6,540.88
  6. Step 6: Final answer
    x = 8,060.62

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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.