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Finding the Fourth Proportional to 26,922.20, 40,368.90 and 9,392.60

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Solution

The fourth proportional to 26,922.20, 40,368.90 and 9,392.60 is: 14,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,922.20 : 40,368.90 = 9,392.60 : x
  2. Step 2: Convert to fraction form
    26,922.20/40,368.90 = 9,392.60/x
  3. Step 3: Cross multiply
    26,922.20x = 40,368.90 × 9,392.60
  4. Step 4: Simplify right side
    26,922.20x = 379,168,930.14
  5. Step 5: Solve for x
    x = 379,168,930.14/26,922.20
  6. Step 6: Final answer
    x = 14,083.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.