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Finding the Fourth Proportional to 4,413.93, 6,621.17 and 1,491.99

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Solution

The fourth proportional to 4,413.93, 6,621.17 and 1,491.99 is: 2,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,413.93 : 6,621.17 = 1,491.99 : x
  2. Step 2: Convert to fraction form
    4,413.93/6,621.17 = 1,491.99/x
  3. Step 3: Cross multiply
    4,413.93x = 6,621.17 × 1,491.99
  4. Step 4: Simplify right side
    4,413.93x = 9,878,711.97
  5. Step 5: Solve for x
    x = 9,878,711.97/4,413.93
  6. Step 6: Final answer
    x = 2,238.08

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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.