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Finding the Fourth Proportional to 2,998.28, 4,491.30 and 2,746.28

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Solution

The fourth proportional to 2,998.28, 4,491.30 and 2,746.28 is: 4,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.28 : 4,491.30 = 2,746.28 : x
  2. Step 2: Convert to fraction form
    2,998.28/4,491.30 = 2,746.28/x
  3. Step 3: Cross multiply
    2,998.28x = 4,491.30 × 2,746.28
  4. Step 4: Simplify right side
    2,998.28x = 12,334,367.36
  5. Step 5: Solve for x
    x = 12,334,367.36/2,998.28
  6. Step 6: Final answer
    x = 4,113.81

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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.