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Finding the Fourth Proportional to 6,413.65, 9,620.37 and 2,031.10

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Solution

The fourth proportional to 6,413.65, 9,620.37 and 2,031.10 is: 3,046.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.65 : 9,620.37 = 2,031.10 : x
  2. Step 2: Convert to fraction form
    6,413.65/9,620.37 = 2,031.10/x
  3. Step 3: Cross multiply
    6,413.65x = 9,620.37 × 2,031.10
  4. Step 4: Simplify right side
    6,413.65x = 19,539,933.51
  5. Step 5: Solve for x
    x = 19,539,933.51/6,413.65
  6. Step 6: Final answer
    x = 3,046.62

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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.