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Finding the Fourth Proportional to 6,850.81, 9,454.13 and 3,706.99

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Solution

The fourth proportional to 6,850.81, 9,454.13 and 3,706.99 is: 5,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,850.81 : 9,454.13 = 3,706.99 : x
  2. Step 2: Convert to fraction form
    6,850.81/9,454.13 = 3,706.99/x
  3. Step 3: Cross multiply
    6,850.81x = 9,454.13 × 3,706.99
  4. Step 4: Simplify right side
    6,850.81x = 35,046,346.83
  5. Step 5: Solve for x
    x = 35,046,346.83/6,850.81
  6. Step 6: Final answer
    x = 5,115.65

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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.