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Finding the Fourth Proportional to 1,469, 2,027.28 and 848

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Solution

The fourth proportional to 1,469, 2,027.28 and 848 is: 1,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469 : 2,027.28 = 848 : x
  2. Step 2: Convert to fraction form
    1,469/2,027.28 = 848/x
  3. Step 3: Cross multiply
    1,469x = 2,027.28 × 848
  4. Step 4: Simplify right side
    1,469x = 1,719,133.44
  5. Step 5: Solve for x
    x = 1,719,133.44/1,469
  6. Step 6: Final answer
    x = 1,170.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.