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Finding the Fourth Proportional to 1,553.73, 2,329.11 and 1,092.57

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Solution

The fourth proportional to 1,553.73, 2,329.11 and 1,092.57 is: 1,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.73 : 2,329.11 = 1,092.57 : x
  2. Step 2: Convert to fraction form
    1,553.73/2,329.11 = 1,092.57/x
  3. Step 3: Cross multiply
    1,553.73x = 2,329.11 × 1,092.57
  4. Step 4: Simplify right side
    1,553.73x = 2,544,715.71
  5. Step 5: Solve for x
    x = 2,544,715.71/1,553.73
  6. Step 6: Final answer
    x = 1,637.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.