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Finding the Fourth Proportional to 4,939.44, 7,405.64 and 2,472.48

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Solution

The fourth proportional to 4,939.44, 7,405.64 and 2,472.48 is: 3,706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.44 : 7,405.64 = 2,472.48 : x
  2. Step 2: Convert to fraction form
    4,939.44/7,405.64 = 2,472.48/x
  3. Step 3: Cross multiply
    4,939.44x = 7,405.64 × 2,472.48
  4. Step 4: Simplify right side
    4,939.44x = 18,310,296.79
  5. Step 5: Solve for x
    x = 18,310,296.79/4,939.44
  6. Step 6: Final answer
    x = 3,706.96

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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.