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Finding the Fourth Proportional to 28,273.68, 39,014.73 and 16,340.85

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Solution

The fourth proportional to 28,273.68, 39,014.73 and 16,340.85 is: 22,548.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.68 : 39,014.73 = 16,340.85 : x
  2. Step 2: Convert to fraction form
    28,273.68/39,014.73 = 16,340.85/x
  3. Step 3: Cross multiply
    28,273.68x = 39,014.73 × 16,340.85
  4. Step 4: Simplify right side
    28,273.68x = 637,533,850.72
  5. Step 5: Solve for x
    x = 637,533,850.72/28,273.68
  6. Step 6: Final answer
    x = 22,548.67

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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.