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Finding the Fourth Proportional to 16,413.76, 22,660.32 and 10,840.96

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Solution

The fourth proportional to 16,413.76, 22,660.32 and 10,840.96 is: 14,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,413.76 : 22,660.32 = 10,840.96 : x
  2. Step 2: Convert to fraction form
    16,413.76/22,660.32 = 10,840.96/x
  3. Step 3: Cross multiply
    16,413.76x = 22,660.32 × 10,840.96
  4. Step 4: Simplify right side
    16,413.76x = 245,659,622.71
  5. Step 5: Solve for x
    x = 245,659,622.71/16,413.76
  6. Step 6: Final answer
    x = 14,966.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.