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Finding the Fourth Proportional to 28,367.44, 42,554 and 10,852

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Solution

The fourth proportional to 28,367.44, 42,554 and 10,852 is: 16,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.44 : 42,554 = 10,852 : x
  2. Step 2: Convert to fraction form
    28,367.44/42,554 = 10,852/x
  3. Step 3: Cross multiply
    28,367.44x = 42,554 × 10,852
  4. Step 4: Simplify right side
    28,367.44x = 461,796,008
  5. Step 5: Solve for x
    x = 461,796,008/28,367.44
  6. Step 6: Final answer
    x = 16,279.09

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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.