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Finding the Fourth Proportional to 2,467.70, 3,701.91 and 908.45

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Solution

The fourth proportional to 2,467.70, 3,701.91 and 908.45 is: 1,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,467.70 : 3,701.91 = 908.45 : x
  2. Step 2: Convert to fraction form
    2,467.70/3,701.91 = 908.45/x
  3. Step 3: Cross multiply
    2,467.70x = 3,701.91 × 908.45
  4. Step 4: Simplify right side
    2,467.70x = 3,363,000.14
  5. Step 5: Solve for x
    x = 3,363,000.14/2,467.70
  6. Step 6: Final answer
    x = 1,362.81

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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.