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Finding the Fourth Proportional to 3,713.70, 5,556.71 and 3,672.18

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Solution

The fourth proportional to 3,713.70, 5,556.71 and 3,672.18 is: 5,494.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.70 : 5,556.71 = 3,672.18 : x
  2. Step 2: Convert to fraction form
    3,713.70/5,556.71 = 3,672.18/x
  3. Step 3: Cross multiply
    3,713.70x = 5,556.71 × 3,672.18
  4. Step 4: Simplify right side
    3,713.70x = 20,405,220.97
  5. Step 5: Solve for x
    x = 20,405,220.97/3,713.70
  6. Step 6: Final answer
    x = 5,494.58

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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.