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Finding the Fourth Proportional to 2,596.40, 3,891.90 and 952.28

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Solution

The fourth proportional to 2,596.40, 3,891.90 and 952.28 is: 1,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,596.40 : 3,891.90 = 952.28 : x
  2. Step 2: Convert to fraction form
    2,596.40/3,891.90 = 952.28/x
  3. Step 3: Cross multiply
    2,596.40x = 3,891.90 × 952.28
  4. Step 4: Simplify right side
    2,596.40x = 3,706,178.53
  5. Step 5: Solve for x
    x = 3,706,178.53/2,596.40
  6. Step 6: Final answer
    x = 1,427.43

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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.