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Finding the Fourth Proportional to 27,197.94, 40,743.72 and 18,763.14

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Solution

The fourth proportional to 27,197.94, 40,743.72 and 18,763.14 is: 28,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,197.94 : 40,743.72 = 18,763.14 : x
  2. Step 2: Convert to fraction form
    27,197.94/40,743.72 = 18,763.14/x
  3. Step 3: Cross multiply
    27,197.94x = 40,743.72 × 18,763.14
  4. Step 4: Simplify right side
    27,197.94x = 764,480,122.48
  5. Step 5: Solve for x
    x = 764,480,122.48/27,197.94
  6. Step 6: Final answer
    x = 28,108.02

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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.