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Finding the Fourth Proportional to 7,361.82, 11,042.72 and 1,889.82

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Solution

The fourth proportional to 7,361.82, 11,042.72 and 1,889.82 is: 2,834.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.82 : 11,042.72 = 1,889.82 : x
  2. Step 2: Convert to fraction form
    7,361.82/11,042.72 = 1,889.82/x
  3. Step 3: Cross multiply
    7,361.82x = 11,042.72 × 1,889.82
  4. Step 4: Simplify right side
    7,361.82x = 20,868,753.11
  5. Step 5: Solve for x
    x = 20,868,753.11/7,361.82
  6. Step 6: Final answer
    x = 2,834.73

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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.