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Finding the Fourth Proportional to 2,837.98, 4,257.16 and 757.96

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Solution

The fourth proportional to 2,837.98, 4,257.16 and 757.96 is: 1,136.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.98 : 4,257.16 = 757.96 : x
  2. Step 2: Convert to fraction form
    2,837.98/4,257.16 = 757.96/x
  3. Step 3: Cross multiply
    2,837.98x = 4,257.16 × 757.96
  4. Step 4: Simplify right side
    2,837.98x = 3,226,756.99
  5. Step 5: Solve for x
    x = 3,226,756.99/2,837.98
  6. Step 6: Final answer
    x = 1,136.99

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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.