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Finding the Fourth Proportional to 6,940.98, 10,411.11 and 2,558.07

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Solution

The fourth proportional to 6,940.98, 10,411.11 and 2,558.07 is: 3,836.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.98 : 10,411.11 = 2,558.07 : x
  2. Step 2: Convert to fraction form
    6,940.98/10,411.11 = 2,558.07/x
  3. Step 3: Cross multiply
    6,940.98x = 10,411.11 × 2,558.07
  4. Step 4: Simplify right side
    6,940.98x = 26,632,348.16
  5. Step 5: Solve for x
    x = 26,632,348.16/6,940.98
  6. Step 6: Final answer
    x = 3,836.97

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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.