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Finding the Fourth Proportional to 25,906.08, 38,872.08 and 12,743.04

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Solution

The fourth proportional to 25,906.08, 38,872.08 and 12,743.04 is: 19,120.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,906.08 : 38,872.08 = 12,743.04 : x
  2. Step 2: Convert to fraction form
    25,906.08/38,872.08 = 12,743.04/x
  3. Step 3: Cross multiply
    25,906.08x = 38,872.08 × 12,743.04
  4. Step 4: Simplify right side
    25,906.08x = 495,348,470.32
  5. Step 5: Solve for x
    x = 495,348,470.32/25,906.08
  6. Step 6: Final answer
    x = 19,120.93

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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.