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Finding the Fourth Proportional to 17,963.63, 26,922.21 and 12,408.11

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Solution

The fourth proportional to 17,963.63, 26,922.21 and 12,408.11 is: 18,596.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,963.63 : 26,922.21 = 12,408.11 : x
  2. Step 2: Convert to fraction form
    17,963.63/26,922.21 = 12,408.11/x
  3. Step 3: Cross multiply
    17,963.63x = 26,922.21 × 12,408.11
  4. Step 4: Simplify right side
    17,963.63x = 334,053,743.12
  5. Step 5: Solve for x
    x = 334,053,743.12/17,963.63
  6. Step 6: Final answer
    x = 18,596.12

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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.