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Finding the Fourth Proportional to 1,024.92, 1,413.18 and 827.82

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Solution

The fourth proportional to 1,024.92, 1,413.18 and 827.82 is: 1,141.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.92 : 1,413.18 = 827.82 : x
  2. Step 2: Convert to fraction form
    1,024.92/1,413.18 = 827.82/x
  3. Step 3: Cross multiply
    1,024.92x = 1,413.18 × 827.82
  4. Step 4: Simplify right side
    1,024.92x = 1,169,858.67
  5. Step 5: Solve for x
    x = 1,169,858.67/1,024.92
  6. Step 6: Final answer
    x = 1,141.41

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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.