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Finding the Fourth Proportional to 8,019.60, 11,067.12 and 4,662.60

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Solution

The fourth proportional to 8,019.60, 11,067.12 and 4,662.60 is: 6,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019.60 : 11,067.12 = 4,662.60 : x
  2. Step 2: Convert to fraction form
    8,019.60/11,067.12 = 4,662.60/x
  3. Step 3: Cross multiply
    8,019.60x = 11,067.12 × 4,662.60
  4. Step 4: Simplify right side
    8,019.60x = 51,601,553.71
  5. Step 5: Solve for x
    x = 51,601,553.71/8,019.60
  6. Step 6: Final answer
    x = 6,434.43

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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.