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Finding the Fourth Proportional to 1,362.54, 1,879.62 and 1,063.24

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Solution

The fourth proportional to 1,362.54, 1,879.62 and 1,063.24 is: 1,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.54 : 1,879.62 = 1,063.24 : x
  2. Step 2: Convert to fraction form
    1,362.54/1,879.62 = 1,063.24/x
  3. Step 3: Cross multiply
    1,362.54x = 1,879.62 × 1,063.24
  4. Step 4: Simplify right side
    1,362.54x = 1,998,487.17
  5. Step 5: Solve for x
    x = 1,998,487.17/1,362.54
  6. Step 6: Final answer
    x = 1,466.74

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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.