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Finding the Fourth Proportional to 1,902.92, 2,626.15 and 1,063.68

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Solution

The fourth proportional to 1,902.92, 2,626.15 and 1,063.68 is: 1,467.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.92 : 2,626.15 = 1,063.68 : x
  2. Step 2: Convert to fraction form
    1,902.92/2,626.15 = 1,063.68/x
  3. Step 3: Cross multiply
    1,902.92x = 2,626.15 × 1,063.68
  4. Step 4: Simplify right side
    1,902.92x = 2,793,384.50
  5. Step 5: Solve for x
    x = 2,793,384.50/1,902.92
  6. Step 6: Final answer
    x = 1,467.95

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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.