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Finding the Fourth Proportional to 6,958.91, 10,439.76 and 6,261.80

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Solution

The fourth proportional to 6,958.91, 10,439.76 and 6,261.80 is: 9,393.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,958.91 : 10,439.76 = 6,261.80 : x
  2. Step 2: Convert to fraction form
    6,958.91/10,439.76 = 6,261.80/x
  3. Step 3: Cross multiply
    6,958.91x = 10,439.76 × 6,261.80
  4. Step 4: Simplify right side
    6,958.91x = 65,371,715.27
  5. Step 5: Solve for x
    x = 65,371,715.27/6,958.91
  6. Step 6: Final answer
    x = 9,393.96

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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.