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Finding the Fourth Proportional to 57,356.89, 79,181.29 and 35,858.58

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Solution

The fourth proportional to 57,356.89, 79,181.29 and 35,858.58 is: 49,502.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,356.89 : 79,181.29 = 35,858.58 : x
  2. Step 2: Convert to fraction form
    57,356.89/79,181.29 = 35,858.58/x
  3. Step 3: Cross multiply
    57,356.89x = 79,181.29 × 35,858.58
  4. Step 4: Simplify right side
    57,356.89x = 2,839,328,621.97
  5. Step 5: Solve for x
    x = 2,839,328,621.97/57,356.89
  6. Step 6: Final answer
    x = 49,502.83

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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.