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Finding the Fourth Proportional to 2,491.34, 3,737.02 and 759.96

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Solution

The fourth proportional to 2,491.34, 3,737.02 and 759.96 is: 1,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.34 : 3,737.02 = 759.96 : x
  2. Step 2: Convert to fraction form
    2,491.34/3,737.02 = 759.96/x
  3. Step 3: Cross multiply
    2,491.34x = 3,737.02 × 759.96
  4. Step 4: Simplify right side
    2,491.34x = 2,839,985.72
  5. Step 5: Solve for x
    x = 2,839,985.72/2,491.34
  6. Step 6: Final answer
    x = 1,139.94

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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.