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Finding the Fourth Proportional to 18,172.95, 25,074.19 and 11,096.79

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Solution

The fourth proportional to 18,172.95, 25,074.19 and 11,096.79 is: 15,310.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.95 : 25,074.19 = 11,096.79 : x
  2. Step 2: Convert to fraction form
    18,172.95/25,074.19 = 11,096.79/x
  3. Step 3: Cross multiply
    18,172.95x = 25,074.19 × 11,096.79
  4. Step 4: Simplify right side
    18,172.95x = 278,243,020.85
  5. Step 5: Solve for x
    x = 278,243,020.85/18,172.95
  6. Step 6: Final answer
    x = 15,310.83

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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.