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Finding the Fourth Proportional to 2,136.44, 3,204.98 and 749.94

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Solution

The fourth proportional to 2,136.44, 3,204.98 and 749.94 is: 1,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.44 : 3,204.98 = 749.94 : x
  2. Step 2: Convert to fraction form
    2,136.44/3,204.98 = 749.94/x
  3. Step 3: Cross multiply
    2,136.44x = 3,204.98 × 749.94
  4. Step 4: Simplify right side
    2,136.44x = 2,403,542.70
  5. Step 5: Solve for x
    x = 2,403,542.70/2,136.44
  6. Step 6: Final answer
    x = 1,125.02

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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.