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Finding the Fourth Proportional to 1,443.98, 2,163.90 and 795.26

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Solution

The fourth proportional to 1,443.98, 2,163.90 and 795.26 is: 1,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443.98 : 2,163.90 = 795.26 : x
  2. Step 2: Convert to fraction form
    1,443.98/2,163.90 = 795.26/x
  3. Step 3: Cross multiply
    1,443.98x = 2,163.90 × 795.26
  4. Step 4: Simplify right side
    1,443.98x = 1,720,863.11
  5. Step 5: Solve for x
    x = 1,720,863.11/1,443.98
  6. Step 6: Final answer
    x = 1,191.75

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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.