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Finding the Fourth Proportional to 2,952.72, 4,074.70 and 1,626.42

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Solution

The fourth proportional to 2,952.72, 4,074.70 and 1,626.42 is: 2,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,952.72 : 4,074.70 = 1,626.42 : x
  2. Step 2: Convert to fraction form
    2,952.72/4,074.70 = 1,626.42/x
  3. Step 3: Cross multiply
    2,952.72x = 4,074.70 × 1,626.42
  4. Step 4: Simplify right side
    2,952.72x = 6,627,173.57
  5. Step 5: Solve for x
    x = 6,627,173.57/2,952.72
  6. Step 6: Final answer
    x = 2,244.43

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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.