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Finding the Fourth Proportional to 8,632.10, 11,912.24 and 4,906.10

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Solution

The fourth proportional to 8,632.10, 11,912.24 and 4,906.10 is: 6,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.10 : 11,912.24 = 4,906.10 : x
  2. Step 2: Convert to fraction form
    8,632.10/11,912.24 = 4,906.10/x
  3. Step 3: Cross multiply
    8,632.10x = 11,912.24 × 4,906.10
  4. Step 4: Simplify right side
    8,632.10x = 58,442,556.57
  5. Step 5: Solve for x
    x = 58,442,556.57/8,632.10
  6. Step 6: Final answer
    x = 6,770.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.