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Finding the Fourth Proportional to 13,413.40, 20,120.10 and 6,018.10

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Solution

The fourth proportional to 13,413.40, 20,120.10 and 6,018.10 is: 9,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.40 : 20,120.10 = 6,018.10 : x
  2. Step 2: Convert to fraction form
    13,413.40/20,120.10 = 6,018.10/x
  3. Step 3: Cross multiply
    13,413.40x = 20,120.10 × 6,018.10
  4. Step 4: Simplify right side
    13,413.40x = 121,084,773.81
  5. Step 5: Solve for x
    x = 121,084,773.81/13,413.40
  6. Step 6: Final answer
    x = 9,027.15

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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.