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Finding the Fourth Proportional to 17,959.57, 26,939.19 and 6,717.74

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Solution

The fourth proportional to 17,959.57, 26,939.19 and 6,717.74 is: 10,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,959.57 : 26,939.19 = 6,717.74 : x
  2. Step 2: Convert to fraction form
    17,959.57/26,939.19 = 6,717.74/x
  3. Step 3: Cross multiply
    17,959.57x = 26,939.19 × 6,717.74
  4. Step 4: Simplify right side
    17,959.57x = 180,970,474.23
  5. Step 5: Solve for x
    x = 180,970,474.23/17,959.57
  6. Step 6: Final answer
    x = 10,076.55

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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.