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Finding the Fourth Proportional to 1,153.63, 1,722.08 and 1,067.98

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Solution

The fourth proportional to 1,153.63, 1,722.08 and 1,067.98 is: 1,594.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.63 : 1,722.08 = 1,067.98 : x
  2. Step 2: Convert to fraction form
    1,153.63/1,722.08 = 1,067.98/x
  3. Step 3: Cross multiply
    1,153.63x = 1,722.08 × 1,067.98
  4. Step 4: Simplify right side
    1,153.63x = 1,839,147.00
  5. Step 5: Solve for x
    x = 1,839,147.00/1,153.63
  6. Step 6: Final answer
    x = 1,594.23

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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.