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Finding the Fourth Proportional to 6,959.59, 10,439.94 and 2,799.05

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Solution

The fourth proportional to 6,959.59, 10,439.94 and 2,799.05 is: 4,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,959.59 : 10,439.94 = 2,799.05 : x
  2. Step 2: Convert to fraction form
    6,959.59/10,439.94 = 2,799.05/x
  3. Step 3: Cross multiply
    6,959.59x = 10,439.94 × 2,799.05
  4. Step 4: Simplify right side
    6,959.59x = 29,221,914.06
  5. Step 5: Solve for x
    x = 29,221,914.06/6,959.59
  6. Step 6: Final answer
    x = 4,198.80

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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.