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Finding the Fourth Proportional to 25,379.92, 38,092.16 and 12,069.19

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Solution

The fourth proportional to 25,379.92, 38,092.16 and 12,069.19 is: 18,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.92 : 38,092.16 = 12,069.19 : x
  2. Step 2: Convert to fraction form
    25,379.92/38,092.16 = 12,069.19/x
  3. Step 3: Cross multiply
    25,379.92x = 38,092.16 × 12,069.19
  4. Step 4: Simplify right side
    25,379.92x = 459,741,516.55
  5. Step 5: Solve for x
    x = 459,741,516.55/25,379.92
  6. Step 6: Final answer
    x = 18,114.38

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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.