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Finding the Fourth Proportional to 18,571.94, 25,627.74 and 10,188.44

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Solution

The fourth proportional to 18,571.94, 25,627.74 and 10,188.44 is: 14,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.94 : 25,627.74 = 10,188.44 : x
  2. Step 2: Convert to fraction form
    18,571.94/25,627.74 = 10,188.44/x
  3. Step 3: Cross multiply
    18,571.94x = 25,627.74 × 10,188.44
  4. Step 4: Simplify right side
    18,571.94x = 261,106,691.33
  5. Step 5: Solve for x
    x = 261,106,691.33/18,571.94
  6. Step 6: Final answer
    x = 14,059.20

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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.