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Finding the Fourth Proportional to 28,093.14, 42,128.01 and 11,441.88

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Solution

The fourth proportional to 28,093.14, 42,128.01 and 11,441.88 is: 17,158.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,093.14 : 42,128.01 = 11,441.88 : x
  2. Step 2: Convert to fraction form
    28,093.14/42,128.01 = 11,441.88/x
  3. Step 3: Cross multiply
    28,093.14x = 42,128.01 × 11,441.88
  4. Step 4: Simplify right side
    28,093.14x = 482,023,635.06
  5. Step 5: Solve for x
    x = 482,023,635.06/28,093.14
  6. Step 6: Final answer
    x = 17,158.05

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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.