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Finding the Fourth Proportional to 15,791.98, 21,803.50 and 12,034.44

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Solution

The fourth proportional to 15,791.98, 21,803.50 and 12,034.44 is: 16,615.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.98 : 21,803.50 = 12,034.44 : x
  2. Step 2: Convert to fraction form
    15,791.98/21,803.50 = 12,034.44/x
  3. Step 3: Cross multiply
    15,791.98x = 21,803.50 × 12,034.44
  4. Step 4: Simplify right side
    15,791.98x = 262,392,912.54
  5. Step 5: Solve for x
    x = 262,392,912.54/15,791.98
  6. Step 6: Final answer
    x = 16,615.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.