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Finding the Fourth Proportional to 3,955.42, 5,933.31 and 1,323.14

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Solution

The fourth proportional to 3,955.42, 5,933.31 and 1,323.14 is: 1,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.42 : 5,933.31 = 1,323.14 : x
  2. Step 2: Convert to fraction form
    3,955.42/5,933.31 = 1,323.14/x
  3. Step 3: Cross multiply
    3,955.42x = 5,933.31 × 1,323.14
  4. Step 4: Simplify right side
    3,955.42x = 7,850,593.18
  5. Step 5: Solve for x
    x = 7,850,593.18/3,955.42
  6. Step 6: Final answer
    x = 1,984.77

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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.