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Finding the Fourth Proportional to 20,393.44, 30,591.60 and 8,708.32

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Solution

The fourth proportional to 20,393.44, 30,591.60 and 8,708.32 is: 13,063.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.44 : 30,591.60 = 8,708.32 : x
  2. Step 2: Convert to fraction form
    20,393.44/30,591.60 = 8,708.32/x
  3. Step 3: Cross multiply
    20,393.44x = 30,591.60 × 8,708.32
  4. Step 4: Simplify right side
    20,393.44x = 266,401,442.11
  5. Step 5: Solve for x
    x = 266,401,442.11/20,393.44
  6. Step 6: Final answer
    x = 13,063.09

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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.