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Finding the Fourth Proportional to 16,923.75, 25,385.63 and 4,611.75

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Solution

The fourth proportional to 16,923.75, 25,385.63 and 4,611.75 is: 6,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,923.75 : 25,385.63 = 4,611.75 : x
  2. Step 2: Convert to fraction form
    16,923.75/25,385.63 = 4,611.75/x
  3. Step 3: Cross multiply
    16,923.75x = 25,385.63 × 4,611.75
  4. Step 4: Simplify right side
    16,923.75x = 117,072,156.09
  5. Step 5: Solve for x
    x = 117,072,156.09/16,923.75
  6. Step 6: Final answer
    x = 6,917.63

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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.