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Finding the Fourth Proportional to 18,525.42, 25,559.84 and 10,968.44

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Solution

The fourth proportional to 18,525.42, 25,559.84 and 10,968.44 is: 15,133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.42 : 25,559.84 = 10,968.44 : x
  2. Step 2: Convert to fraction form
    18,525.42/25,559.84 = 10,968.44/x
  3. Step 3: Cross multiply
    18,525.42x = 25,559.84 × 10,968.44
  4. Step 4: Simplify right side
    18,525.42x = 280,351,571.45
  5. Step 5: Solve for x
    x = 280,351,571.45/18,525.42
  6. Step 6: Final answer
    x = 15,133.34

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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.