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Finding the Fourth Proportional to 1,371.50, 2,057.93 and 550.37

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Solution

The fourth proportional to 1,371.50, 2,057.93 and 550.37 is: 825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.50 : 2,057.93 = 550.37 : x
  2. Step 2: Convert to fraction form
    1,371.50/2,057.93 = 550.37/x
  3. Step 3: Cross multiply
    1,371.50x = 2,057.93 × 550.37
  4. Step 4: Simplify right side
    1,371.50x = 1,132,609.89
  5. Step 5: Solve for x
    x = 1,132,609.89/1,371.50
  6. Step 6: Final answer
    x = 825.82

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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.