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Finding the Fourth Proportional to 3,413.74, 5,114.18 and 1,948.46

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Solution

The fourth proportional to 3,413.74, 5,114.18 and 1,948.46 is: 2,919.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.74 : 5,114.18 = 1,948.46 : x
  2. Step 2: Convert to fraction form
    3,413.74/5,114.18 = 1,948.46/x
  3. Step 3: Cross multiply
    3,413.74x = 5,114.18 × 1,948.46
  4. Step 4: Simplify right side
    3,413.74x = 9,964,775.16
  5. Step 5: Solve for x
    x = 9,964,775.16/3,413.74
  6. Step 6: Final answer
    x = 2,919.02

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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.