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Finding the Fourth Proportional to 4,939.44, 7,409.34 and 3,375.72

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Solution

The fourth proportional to 4,939.44, 7,409.34 and 3,375.72 is: 5,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.44 : 7,409.34 = 3,375.72 : x
  2. Step 2: Convert to fraction form
    4,939.44/7,409.34 = 3,375.72/x
  3. Step 3: Cross multiply
    4,939.44x = 7,409.34 × 3,375.72
  4. Step 4: Simplify right side
    4,939.44x = 25,011,857.22
  5. Step 5: Solve for x
    x = 25,011,857.22/4,939.44
  6. Step 6: Final answer
    x = 5,063.70

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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.