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Finding the Fourth Proportional to 26,920.60, 40,383.74 and 9,390.58

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Solution

The fourth proportional to 26,920.60, 40,383.74 and 9,390.58 is: 14,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,920.60 : 40,383.74 = 9,390.58 : x
  2. Step 2: Convert to fraction form
    26,920.60/40,383.74 = 9,390.58/x
  3. Step 3: Cross multiply
    26,920.60x = 40,383.74 × 9,390.58
  4. Step 4: Simplify right side
    26,920.60x = 379,226,694.22
  5. Step 5: Solve for x
    x = 379,226,694.22/26,920.60
  6. Step 6: Final answer
    x = 14,086.86

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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.