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Finding the Fourth Proportional to 56,453.44, 77,906.82 and 30,958.29

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Solution

The fourth proportional to 56,453.44, 77,906.82 and 30,958.29 is: 42,723.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,453.44 : 77,906.82 = 30,958.29 : x
  2. Step 2: Convert to fraction form
    56,453.44/77,906.82 = 30,958.29/x
  3. Step 3: Cross multiply
    56,453.44x = 77,906.82 × 30,958.29
  4. Step 4: Simplify right side
    56,453.44x = 2,411,861,926.54
  5. Step 5: Solve for x
    x = 2,411,861,926.54/56,453.44
  6. Step 6: Final answer
    x = 42,723.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.