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Finding the Fourth Proportional to 13,592.88, 18,795.12 and 11,843.28

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Solution

The fourth proportional to 13,592.88, 18,795.12 and 11,843.28 is: 16,375.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.88 : 18,795.12 = 11,843.28 : x
  2. Step 2: Convert to fraction form
    13,592.88/18,795.12 = 11,843.28/x
  3. Step 3: Cross multiply
    13,592.88x = 18,795.12 × 11,843.28
  4. Step 4: Simplify right side
    13,592.88x = 222,595,868.79
  5. Step 5: Solve for x
    x = 222,595,868.79/13,592.88
  6. Step 6: Final answer
    x = 16,375.92

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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.