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Finding the Fourth Proportional to 11,179.60, 16,750.20 and 5,323.60

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Solution

The fourth proportional to 11,179.60, 16,750.20 and 5,323.60 is: 7,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.60 : 16,750.20 = 5,323.60 : x
  2. Step 2: Convert to fraction form
    11,179.60/16,750.20 = 5,323.60/x
  3. Step 3: Cross multiply
    11,179.60x = 16,750.20 × 5,323.60
  4. Step 4: Simplify right side
    11,179.60x = 89,171,364.72
  5. Step 5: Solve for x
    x = 89,171,364.72/11,179.60
  6. Step 6: Final answer
    x = 7,976.26

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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.