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Finding the Fourth Proportional to 1,843.99, 2,766.75 and 749.14

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Solution

The fourth proportional to 1,843.99, 2,766.75 and 749.14 is: 1,124.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843.99 : 2,766.75 = 749.14 : x
  2. Step 2: Convert to fraction form
    1,843.99/2,766.75 = 749.14/x
  3. Step 3: Cross multiply
    1,843.99x = 2,766.75 × 749.14
  4. Step 4: Simplify right side
    1,843.99x = 2,072,683.10
  5. Step 5: Solve for x
    x = 2,072,683.10/1,843.99
  6. Step 6: Final answer
    x = 1,124.02

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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.