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Finding the Fourth Proportional to 1,940.84, 2,673.24 and 1,608.20

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Solution

The fourth proportional to 1,940.84, 2,673.24 and 1,608.20 is: 2,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.84 : 2,673.24 = 1,608.20 : x
  2. Step 2: Convert to fraction form
    1,940.84/2,673.24 = 1,608.20/x
  3. Step 3: Cross multiply
    1,940.84x = 2,673.24 × 1,608.20
  4. Step 4: Simplify right side
    1,940.84x = 4,299,104.57
  5. Step 5: Solve for x
    x = 4,299,104.57/1,940.84
  6. Step 6: Final answer
    x = 2,215.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.