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Finding the Fourth Proportional to 1,852.90, 2,557.11 and 1,067.08

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Solution

The fourth proportional to 1,852.90, 2,557.11 and 1,067.08 is: 1,472.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.90 : 2,557.11 = 1,067.08 : x
  2. Step 2: Convert to fraction form
    1,852.90/2,557.11 = 1,067.08/x
  3. Step 3: Cross multiply
    1,852.90x = 2,557.11 × 1,067.08
  4. Step 4: Simplify right side
    1,852.90x = 2,728,640.94
  5. Step 5: Solve for x
    x = 2,728,640.94/1,852.90
  6. Step 6: Final answer
    x = 1,472.63

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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.