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Finding the Fourth Proportional to 2,796.91, 4,195.81 and 848.65

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Solution

The fourth proportional to 2,796.91, 4,195.81 and 848.65 is: 1,273.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.91 : 4,195.81 = 848.65 : x
  2. Step 2: Convert to fraction form
    2,796.91/4,195.81 = 848.65/x
  3. Step 3: Cross multiply
    2,796.91x = 4,195.81 × 848.65
  4. Step 4: Simplify right side
    2,796.91x = 3,560,774.16
  5. Step 5: Solve for x
    x = 3,560,774.16/2,796.91
  6. Step 6: Final answer
    x = 1,273.11

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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.