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Finding the Fourth Proportional to 4,943.54, 7,413.15 and 1,479.98

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Solution

The fourth proportional to 4,943.54, 7,413.15 and 1,479.98 is: 2,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.54 : 7,413.15 = 1,479.98 : x
  2. Step 2: Convert to fraction form
    4,943.54/7,413.15 = 1,479.98/x
  3. Step 3: Cross multiply
    4,943.54x = 7,413.15 × 1,479.98
  4. Step 4: Simplify right side
    4,943.54x = 10,971,306.34
  5. Step 5: Solve for x
    x = 10,971,306.34/4,943.54
  6. Step 6: Final answer
    x = 2,219.32

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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.