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Finding the Fourth Proportional to 2,954.44, 4,431.42 and 1,721.08

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Solution

The fourth proportional to 2,954.44, 4,431.42 and 1,721.08 is: 2,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.44 : 4,431.42 = 1,721.08 : x
  2. Step 2: Convert to fraction form
    2,954.44/4,431.42 = 1,721.08/x
  3. Step 3: Cross multiply
    2,954.44x = 4,431.42 × 1,721.08
  4. Step 4: Simplify right side
    2,954.44x = 7,626,828.33
  5. Step 5: Solve for x
    x = 7,626,828.33/2,954.44
  6. Step 6: Final answer
    x = 2,581.48

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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.