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Finding the Fourth Proportional to 28,662.91, 43,001.82 and 10,893.88

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Solution

The fourth proportional to 28,662.91, 43,001.82 and 10,893.88 is: 16,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.91 : 43,001.82 = 10,893.88 : x
  2. Step 2: Convert to fraction form
    28,662.91/43,001.82 = 10,893.88/x
  3. Step 3: Cross multiply
    28,662.91x = 43,001.82 × 10,893.88
  4. Step 4: Simplify right side
    28,662.91x = 468,456,666.86
  5. Step 5: Solve for x
    x = 468,456,666.86/28,662.91
  6. Step 6: Final answer
    x = 16,343.65

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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.