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Finding the Fourth Proportional to 8,632.02, 11,912.15 and 4,906.02

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Solution

The fourth proportional to 8,632.02, 11,912.15 and 4,906.02 is: 6,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.02 : 11,912.15 = 4,906.02 : x
  2. Step 2: Convert to fraction form
    8,632.02/11,912.15 = 4,906.02/x
  3. Step 3: Cross multiply
    8,632.02x = 11,912.15 × 4,906.02
  4. Step 4: Simplify right side
    8,632.02x = 58,441,246.14
  5. Step 5: Solve for x
    x = 58,441,246.14/8,632.02
  6. Step 6: Final answer
    x = 6,770.29

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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.