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Finding the Fourth Proportional to 1,896.33, 2,845.05 and 1,146.67

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Solution

The fourth proportional to 1,896.33, 2,845.05 and 1,146.67 is: 1,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.33 : 2,845.05 = 1,146.67 : x
  2. Step 2: Convert to fraction form
    1,896.33/2,845.05 = 1,146.67/x
  3. Step 3: Cross multiply
    1,896.33x = 2,845.05 × 1,146.67
  4. Step 4: Simplify right side
    1,896.33x = 3,262,333.48
  5. Step 5: Solve for x
    x = 3,262,333.48/1,896.33
  6. Step 6: Final answer
    x = 1,720.34

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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.