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Finding the Fourth Proportional to 11,043.56, 16,571.28 and 8,583.32

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Solution

The fourth proportional to 11,043.56, 16,571.28 and 8,583.32 is: 12,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,043.56 : 16,571.28 = 8,583.32 : x
  2. Step 2: Convert to fraction form
    11,043.56/16,571.28 = 8,583.32/x
  3. Step 3: Cross multiply
    11,043.56x = 16,571.28 × 8,583.32
  4. Step 4: Simplify right side
    11,043.56x = 142,236,599.05
  5. Step 5: Solve for x
    x = 142,236,599.05/11,043.56
  6. Step 6: Final answer
    x = 12,879.60

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1.5x scale

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.