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Finding the Fourth Proportional to 6,861.11, 9,520.13 and 6,583.48

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Solution

The fourth proportional to 6,861.11, 9,520.13 and 6,583.48 is: 9,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.11 : 9,520.13 = 6,583.48 : x
  2. Step 2: Convert to fraction form
    6,861.11/9,520.13 = 6,583.48/x
  3. Step 3: Cross multiply
    6,861.11x = 9,520.13 × 6,583.48
  4. Step 4: Simplify right side
    6,861.11x = 62,675,578.11
  5. Step 5: Solve for x
    x = 62,675,578.11/6,861.11
  6. Step 6: Final answer
    x = 9,134.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.