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Finding the Fourth Proportional to 11,791.95, 17,687.97 and 11,200.71

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Solution

The fourth proportional to 11,791.95, 17,687.97 and 11,200.71 is: 16,801.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.95 : 17,687.97 = 11,200.71 : x
  2. Step 2: Convert to fraction form
    11,791.95/17,687.97 = 11,200.71/x
  3. Step 3: Cross multiply
    11,791.95x = 17,687.97 × 11,200.71
  4. Step 4: Simplify right side
    11,791.95x = 198,117,888.79
  5. Step 5: Solve for x
    x = 198,117,888.79/11,791.95
  6. Step 6: Final answer
    x = 16,801.12

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1.5x scale

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.