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Finding the Fourth Proportional to 16,697.97, 23,015.21 and 13,329.99

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Solution

The fourth proportional to 16,697.97, 23,015.21 and 13,329.99 is: 18,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,697.97 : 23,015.21 = 13,329.99 : x
  2. Step 2: Convert to fraction form
    16,697.97/23,015.21 = 13,329.99/x
  3. Step 3: Cross multiply
    16,697.97x = 23,015.21 × 13,329.99
  4. Step 4: Simplify right side
    16,697.97x = 306,792,452.50
  5. Step 5: Solve for x
    x = 306,792,452.50/16,697.97
  6. Step 6: Final answer
    x = 18,373.04

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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.