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Finding the Fourth Proportional to 16,392.14, 22,631.50 and 11,354.55

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Solution

The fourth proportional to 16,392.14, 22,631.50 and 11,354.55 is: 15,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,392.14 : 22,631.50 = 11,354.55 : x
  2. Step 2: Convert to fraction form
    16,392.14/22,631.50 = 11,354.55/x
  3. Step 3: Cross multiply
    16,392.14x = 22,631.50 × 11,354.55
  4. Step 4: Simplify right side
    16,392.14x = 256,970,427.65
  5. Step 5: Solve for x
    x = 256,970,427.65/16,392.14
  6. Step 6: Final answer
    x = 15,676.44

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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.