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Finding the Fourth Proportional to 1,067.70, 1,473.61 and 848.32

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Solution

The fourth proportional to 1,067.70, 1,473.61 and 848.32 is: 1,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.70 : 1,473.61 = 848.32 : x
  2. Step 2: Convert to fraction form
    1,067.70/1,473.61 = 848.32/x
  3. Step 3: Cross multiply
    1,067.70x = 1,473.61 × 848.32
  4. Step 4: Simplify right side
    1,067.70x = 1,250,092.84
  5. Step 5: Solve for x
    x = 1,250,092.84/1,067.70
  6. Step 6: Final answer
    x = 1,170.83

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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.