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Finding the Fourth Proportional to 49,137.36, 73,734.61 and 20,672.22

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Solution

The fourth proportional to 49,137.36, 73,734.61 and 20,672.22 is: 31,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,137.36 : 73,734.61 = 20,672.22 : x
  2. Step 2: Convert to fraction form
    49,137.36/73,734.61 = 20,672.22/x
  3. Step 3: Cross multiply
    49,137.36x = 73,734.61 × 20,672.22
  4. Step 4: Simplify right side
    49,137.36x = 1,524,258,079.53
  5. Step 5: Solve for x
    x = 1,524,258,079.53/49,137.36
  6. Step 6: Final answer
    x = 31,020.35

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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.