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Finding the Fourth Proportional to 8,003.60, 11,995.20 and 4,493.60

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Solution

The fourth proportional to 8,003.60, 11,995.20 and 4,493.60 is: 6,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003.60 : 11,995.20 = 4,493.60 : x
  2. Step 2: Convert to fraction form
    8,003.60/11,995.20 = 4,493.60/x
  3. Step 3: Cross multiply
    8,003.60x = 11,995.20 × 4,493.60
  4. Step 4: Simplify right side
    8,003.60x = 53,901,630.72
  5. Step 5: Solve for x
    x = 53,901,630.72/8,003.60
  6. Step 6: Final answer
    x = 6,734.67

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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.