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Finding the Fourth Proportional to 6,855.57, 9,460.67 and 3,711.76

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Solution

The fourth proportional to 6,855.57, 9,460.67 and 3,711.76 is: 5,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.57 : 9,460.67 = 3,711.76 : x
  2. Step 2: Convert to fraction form
    6,855.57/9,460.67 = 3,711.76/x
  3. Step 3: Cross multiply
    6,855.57x = 9,460.67 × 3,711.76
  4. Step 4: Simplify right side
    6,855.57x = 35,115,694.27
  5. Step 5: Solve for x
    x = 35,115,694.27/6,855.57
  6. Step 6: Final answer
    x = 5,122.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.