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Finding the Fourth Proportional to 7,433.60, 11,121.60 and 4,841.60

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Solution

The fourth proportional to 7,433.60, 11,121.60 and 4,841.60 is: 7,243.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,433.60 : 11,121.60 = 4,841.60 : x
  2. Step 2: Convert to fraction form
    7,433.60/11,121.60 = 4,841.60/x
  3. Step 3: Cross multiply
    7,433.60x = 11,121.60 × 4,841.60
  4. Step 4: Simplify right side
    7,433.60x = 53,846,338.56
  5. Step 5: Solve for x
    x = 53,846,338.56/7,433.60
  6. Step 6: Final answer
    x = 7,243.64

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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.