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Finding the Fourth Proportional to 15,428.44, 23,137.89 and 5,566.44

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Solution

The fourth proportional to 15,428.44, 23,137.89 and 5,566.44 is: 8,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.44 : 23,137.89 = 5,566.44 : x
  2. Step 2: Convert to fraction form
    15,428.44/23,137.89 = 5,566.44/x
  3. Step 3: Cross multiply
    15,428.44x = 23,137.89 × 5,566.44
  4. Step 4: Simplify right side
    15,428.44x = 128,795,676.41
  5. Step 5: Solve for x
    x = 128,795,676.41/15,428.44
  6. Step 6: Final answer
    x = 8,347.94

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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.