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Finding the Fourth Proportional to 17,274.78, 25,912.26 and 9,479.34

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Solution

The fourth proportional to 17,274.78, 25,912.26 and 9,479.34 is: 14,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,274.78 : 25,912.26 = 9,479.34 : x
  2. Step 2: Convert to fraction form
    17,274.78/25,912.26 = 9,479.34/x
  3. Step 3: Cross multiply
    17,274.78x = 25,912.26 × 9,479.34
  4. Step 4: Simplify right side
    17,274.78x = 245,631,122.71
  5. Step 5: Solve for x
    x = 245,631,122.71/17,274.78
  6. Step 6: Final answer
    x = 14,219.06

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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.