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Finding the Fourth Proportional to 3,687.73, 5,531.63 and 1,055.54

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Solution

The fourth proportional to 3,687.73, 5,531.63 and 1,055.54 is: 1,583.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.73 : 5,531.63 = 1,055.54 : x
  2. Step 2: Convert to fraction form
    3,687.73/5,531.63 = 1,055.54/x
  3. Step 3: Cross multiply
    3,687.73x = 5,531.63 × 1,055.54
  4. Step 4: Simplify right side
    3,687.73x = 5,838,865.28
  5. Step 5: Solve for x
    x = 5,838,865.28/3,687.73
  6. Step 6: Final answer
    x = 1,583.32

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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.