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Finding the Fourth Proportional to 57,902.72, 79,907.72 and 34,029.05

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Solution

The fourth proportional to 57,902.72, 79,907.72 and 34,029.05 is: 46,961.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,902.72 : 79,907.72 = 34,029.05 : x
  2. Step 2: Convert to fraction form
    57,902.72/79,907.72 = 34,029.05/x
  3. Step 3: Cross multiply
    57,902.72x = 79,907.72 × 34,029.05
  4. Step 4: Simplify right side
    57,902.72x = 2,719,183,229.58
  5. Step 5: Solve for x
    x = 2,719,183,229.58/57,902.72
  6. Step 6: Final answer
    x = 46,961.24

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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.