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Finding the Fourth Proportional to 1,850.49, 2,553.71 and 1,053.91

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Solution

The fourth proportional to 1,850.49, 2,553.71 and 1,053.91 is: 1,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.49 : 2,553.71 = 1,053.91 : x
  2. Step 2: Convert to fraction form
    1,850.49/2,553.71 = 1,053.91/x
  3. Step 3: Cross multiply
    1,850.49x = 2,553.71 × 1,053.91
  4. Step 4: Simplify right side
    1,850.49x = 2,691,367.74
  5. Step 5: Solve for x
    x = 2,691,367.74/1,850.49
  6. Step 6: Final answer
    x = 1,454.41

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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.