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Finding the Fourth Proportional to 28,891, 43,336.23 and 15,570.27

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Solution

The fourth proportional to 28,891, 43,336.23 and 15,570.27 is: 23,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891 : 43,336.23 = 15,570.27 : x
  2. Step 2: Convert to fraction form
    28,891/43,336.23 = 15,570.27/x
  3. Step 3: Cross multiply
    28,891x = 43,336.23 × 15,570.27
  4. Step 4: Simplify right side
    28,891x = 674,756,801.88
  5. Step 5: Solve for x
    x = 674,756,801.88/28,891
  6. Step 6: Final answer
    x = 23,355.26

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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.