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Finding the Fourth Proportional to 2,362.42, 3,542.03 and 881.63

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Solution

The fourth proportional to 2,362.42, 3,542.03 and 881.63 is: 1,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,362.42 : 3,542.03 = 881.63 : x
  2. Step 2: Convert to fraction form
    2,362.42/3,542.03 = 881.63/x
  3. Step 3: Cross multiply
    2,362.42x = 3,542.03 × 881.63
  4. Step 4: Simplify right side
    2,362.42x = 3,122,774.30
  5. Step 5: Solve for x
    x = 3,122,774.30/2,362.42
  6. Step 6: Final answer
    x = 1,321.86

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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.