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Finding the Fourth Proportional to 25,339, 34,968.90 and 14,161

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Solution

The fourth proportional to 25,339, 34,968.90 and 14,161 is: 19,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,339 : 34,968.90 = 14,161 : x
  2. Step 2: Convert to fraction form
    25,339/34,968.90 = 14,161/x
  3. Step 3: Cross multiply
    25,339x = 34,968.90 × 14,161
  4. Step 4: Simplify right side
    25,339x = 495,194,592.90
  5. Step 5: Solve for x
    x = 495,194,592.90/25,339
  6. Step 6: Final answer
    x = 19,542.78

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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.