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Finding the Fourth Proportional to 1,067.67, 1,473.66 and 695.59

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Solution

The fourth proportional to 1,067.67, 1,473.66 and 695.59 is: 960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.67 : 1,473.66 = 695.59 : x
  2. Step 2: Convert to fraction form
    1,067.67/1,473.66 = 695.59/x
  3. Step 3: Cross multiply
    1,067.67x = 1,473.66 × 695.59
  4. Step 4: Simplify right side
    1,067.67x = 1,025,059.48
  5. Step 5: Solve for x
    x = 1,025,059.48/1,067.67
  6. Step 6: Final answer
    x = 960.09

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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.