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Finding the Fourth Proportional to 33,242.55, 49,893 and 18,468.15

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Solution

The fourth proportional to 33,242.55, 49,893 and 18,468.15 is: 27,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,242.55 : 49,893 = 18,468.15 : x
  2. Step 2: Convert to fraction form
    33,242.55/49,893 = 18,468.15/x
  3. Step 3: Cross multiply
    33,242.55x = 49,893 × 18,468.15
  4. Step 4: Simplify right side
    33,242.55x = 921,431,407.95
  5. Step 5: Solve for x
    x = 921,431,407.95/33,242.55
  6. Step 6: Final answer
    x = 27,718.43

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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.