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Finding the Fourth Proportional to 1,874.73, 2,812.16 and 704.62

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Solution

The fourth proportional to 1,874.73, 2,812.16 and 704.62 is: 1,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.73 : 2,812.16 = 704.62 : x
  2. Step 2: Convert to fraction form
    1,874.73/2,812.16 = 704.62/x
  3. Step 3: Cross multiply
    1,874.73x = 2,812.16 × 704.62
  4. Step 4: Simplify right side
    1,874.73x = 1,981,504.18
  5. Step 5: Solve for x
    x = 1,981,504.18/1,874.73
  6. Step 6: Final answer
    x = 1,056.95

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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.