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Finding the Fourth Proportional to 8,231.70, 12,347.49 and 3,301.26

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Solution

The fourth proportional to 8,231.70, 12,347.49 and 3,301.26 is: 4,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.70 : 12,347.49 = 3,301.26 : x
  2. Step 2: Convert to fraction form
    8,231.70/12,347.49 = 3,301.26/x
  3. Step 3: Cross multiply
    8,231.70x = 12,347.49 × 3,301.26
  4. Step 4: Simplify right side
    8,231.70x = 40,762,274.84
  5. Step 5: Solve for x
    x = 40,762,274.84/8,231.70
  6. Step 6: Final answer
    x = 4,951.87

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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.