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Finding the Fourth Proportional to 16,713.81, 25,071.30 and 5,620.86

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Solution

The fourth proportional to 16,713.81, 25,071.30 and 5,620.86 is: 8,431.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,713.81 : 25,071.30 = 5,620.86 : x
  2. Step 2: Convert to fraction form
    16,713.81/25,071.30 = 5,620.86/x
  3. Step 3: Cross multiply
    16,713.81x = 25,071.30 × 5,620.86
  4. Step 4: Simplify right side
    16,713.81x = 140,922,267.32
  5. Step 5: Solve for x
    x = 140,922,267.32/16,713.81
  6. Step 6: Final answer
    x = 8,431.49

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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.