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Finding the Fourth Proportional to 7,361.73, 11,042.60 and 1,815.17

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Solution

The fourth proportional to 7,361.73, 11,042.60 and 1,815.17 is: 2,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.73 : 11,042.60 = 1,815.17 : x
  2. Step 2: Convert to fraction form
    7,361.73/11,042.60 = 1,815.17/x
  3. Step 3: Cross multiply
    7,361.73x = 11,042.60 × 1,815.17
  4. Step 4: Simplify right side
    7,361.73x = 20,044,131.95
  5. Step 5: Solve for x
    x = 20,044,131.95/7,361.73
  6. Step 6: Final answer
    x = 2,722.75

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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.