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Finding the Fourth Proportional to 5,413.36, 7,470.36 and 2,929.36

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Solution

The fourth proportional to 5,413.36, 7,470.36 and 2,929.36 is: 4,042.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.36 : 7,470.36 = 2,929.36 : x
  2. Step 2: Convert to fraction form
    5,413.36/7,470.36 = 2,929.36/x
  3. Step 3: Cross multiply
    5,413.36x = 7,470.36 × 2,929.36
  4. Step 4: Simplify right side
    5,413.36x = 21,883,373.77
  5. Step 5: Solve for x
    x = 21,883,373.77/5,413.36
  6. Step 6: Final answer
    x = 4,042.48

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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.