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Finding the Fourth Proportional to 28,893.62, 43,329.48 and 11,353.88

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Solution

The fourth proportional to 28,893.62, 43,329.48 and 11,353.88 is: 17,026.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.62 : 43,329.48 = 11,353.88 : x
  2. Step 2: Convert to fraction form
    28,893.62/43,329.48 = 11,353.88/x
  3. Step 3: Cross multiply
    28,893.62x = 43,329.48 × 11,353.88
  4. Step 4: Simplify right side
    28,893.62x = 491,957,499.74
  5. Step 5: Solve for x
    x = 491,957,499.74/28,893.62
  6. Step 6: Final answer
    x = 17,026.51

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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.