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Finding the Fourth Proportional to 1,795.11, 2,691.17 and 755.90

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Solution

The fourth proportional to 1,795.11, 2,691.17 and 755.90 is: 1,133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.11 : 2,691.17 = 755.90 : x
  2. Step 2: Convert to fraction form
    1,795.11/2,691.17 = 755.90/x
  3. Step 3: Cross multiply
    1,795.11x = 2,691.17 × 755.90
  4. Step 4: Simplify right side
    1,795.11x = 2,034,255.40
  5. Step 5: Solve for x
    x = 2,034,255.40/1,795.11
  6. Step 6: Final answer
    x = 1,133.22

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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.