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Finding the Fourth Proportional to 3,146.53, 4,719.79 and 1,413.13

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Solution

The fourth proportional to 3,146.53, 4,719.79 and 1,413.13 is: 2,119.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.53 : 4,719.79 = 1,413.13 : x
  2. Step 2: Convert to fraction form
    3,146.53/4,719.79 = 1,413.13/x
  3. Step 3: Cross multiply
    3,146.53x = 4,719.79 × 1,413.13
  4. Step 4: Simplify right side
    3,146.53x = 6,669,676.84
  5. Step 5: Solve for x
    x = 6,669,676.84/3,146.53
  6. Step 6: Final answer
    x = 2,119.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.