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Finding the Fourth Proportional to 2,491.01, 3,736.38 and 759.50

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Solution

The fourth proportional to 2,491.01, 3,736.38 and 759.50 is: 1,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.01 : 3,736.38 = 759.50 : x
  2. Step 2: Convert to fraction form
    2,491.01/3,736.38 = 759.50/x
  3. Step 3: Cross multiply
    2,491.01x = 3,736.38 × 759.50
  4. Step 4: Simplify right side
    2,491.01x = 2,837,780.61
  5. Step 5: Solve for x
    x = 2,837,780.61/2,491.01
  6. Step 6: Final answer
    x = 1,139.21

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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.