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Finding the Fourth Proportional to 1,067.34, 1,593.91 and 1,055.90

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Solution

The fourth proportional to 1,067.34, 1,593.91 and 1,055.90 is: 1,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.34 : 1,593.91 = 1,055.90 : x
  2. Step 2: Convert to fraction form
    1,067.34/1,593.91 = 1,055.90/x
  3. Step 3: Cross multiply
    1,067.34x = 1,593.91 × 1,055.90
  4. Step 4: Simplify right side
    1,067.34x = 1,683,009.57
  5. Step 5: Solve for x
    x = 1,683,009.57/1,067.34
  6. Step 6: Final answer
    x = 1,576.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.