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Finding the Fourth Proportional to 8,906.14, 12,289.11 and 4,927.27

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Solution

The fourth proportional to 8,906.14, 12,289.11 and 4,927.27 is: 6,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.14 : 12,289.11 = 4,927.27 : x
  2. Step 2: Convert to fraction form
    8,906.14/12,289.11 = 4,927.27/x
  3. Step 3: Cross multiply
    8,906.14x = 12,289.11 × 4,927.27
  4. Step 4: Simplify right side
    8,906.14x = 60,551,763.03
  5. Step 5: Solve for x
    x = 60,551,763.03/8,906.14
  6. Step 6: Final answer
    x = 6,798.88

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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.