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Finding the Fourth Proportional to 3,511.76, 4,846.34 and 1,940.00

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Solution

The fourth proportional to 3,511.76, 4,846.34 and 1,940.00 is: 2,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.76 : 4,846.34 = 1,940.00 : x
  2. Step 2: Convert to fraction form
    3,511.76/4,846.34 = 1,940.00/x
  3. Step 3: Cross multiply
    3,511.76x = 4,846.34 × 1,940.00
  4. Step 4: Simplify right side
    3,511.76x = 9,401,880.22
  5. Step 5: Solve for x
    x = 9,401,880.22/3,511.76
  6. Step 6: Final answer
    x = 2,677.26

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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.