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Finding the Fourth Proportional to 6,679.69, 9,970.20 and 5,891.75

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Solution

The fourth proportional to 6,679.69, 9,970.20 and 5,891.75 is: 8,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.69 : 9,970.20 = 5,891.75 : x
  2. Step 2: Convert to fraction form
    6,679.69/9,970.20 = 5,891.75/x
  3. Step 3: Cross multiply
    6,679.69x = 9,970.20 × 5,891.75
  4. Step 4: Simplify right side
    6,679.69x = 58,741,876.00
  5. Step 5: Solve for x
    x = 58,741,876.00/6,679.69
  6. Step 6: Final answer
    x = 8,794.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.