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Finding the Fourth Proportional to 2,491.70, 3,737.12 and 848.25

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Solution

The fourth proportional to 2,491.70, 3,737.12 and 848.25 is: 1,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.70 : 3,737.12 = 848.25 : x
  2. Step 2: Convert to fraction form
    2,491.70/3,737.12 = 848.25/x
  3. Step 3: Cross multiply
    2,491.70x = 3,737.12 × 848.25
  4. Step 4: Simplify right side
    2,491.70x = 3,170,007.80
  5. Step 5: Solve for x
    x = 3,170,007.80/2,491.70
  6. Step 6: Final answer
    x = 1,272.23

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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.