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Finding the Fourth Proportional to 2,696.99, 3,721.95 and 1,517.99

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Solution

The fourth proportional to 2,696.99, 3,721.95 and 1,517.99 is: 2,094.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.99 : 3,721.95 = 1,517.99 : x
  2. Step 2: Convert to fraction form
    2,696.99/3,721.95 = 1,517.99/x
  3. Step 3: Cross multiply
    2,696.99x = 3,721.95 × 1,517.99
  4. Step 4: Simplify right side
    2,696.99x = 5,649,864.27
  5. Step 5: Solve for x
    x = 5,649,864.27/2,696.99
  6. Step 6: Final answer
    x = 2,094.88

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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.