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Finding the Fourth Proportional to 12,197.88, 18,296.73 and 2,963.88

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Solution

The fourth proportional to 12,197.88, 18,296.73 and 2,963.88 is: 4,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.88 : 18,296.73 = 2,963.88 : x
  2. Step 2: Convert to fraction form
    12,197.88/18,296.73 = 2,963.88/x
  3. Step 3: Cross multiply
    12,197.88x = 18,296.73 × 2,963.88
  4. Step 4: Simplify right side
    12,197.88x = 54,229,312.11
  5. Step 5: Solve for x
    x = 54,229,312.11/12,197.88
  6. Step 6: Final answer
    x = 4,445.80

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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.