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Finding the Fourth Proportional to 3,662.95, 5,054.89 and 1,984.36

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Solution

The fourth proportional to 3,662.95, 5,054.89 and 1,984.36 is: 2,738.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,662.95 : 5,054.89 = 1,984.36 : x
  2. Step 2: Convert to fraction form
    3,662.95/5,054.89 = 1,984.36/x
  3. Step 3: Cross multiply
    3,662.95x = 5,054.89 × 1,984.36
  4. Step 4: Simplify right side
    3,662.95x = 10,030,721.52
  5. Step 5: Solve for x
    x = 10,030,721.52/3,662.95
  6. Step 6: Final answer
    x = 2,738.43

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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.