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Finding the Fourth Proportional to 57,879, 79,883.26 and 34,005.67

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Solution

The fourth proportional to 57,879, 79,883.26 and 34,005.67 is: 46,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879 : 79,883.26 = 34,005.67 : x
  2. Step 2: Convert to fraction form
    57,879/79,883.26 = 34,005.67/x
  3. Step 3: Cross multiply
    57,879x = 79,883.26 × 34,005.67
  4. Step 4: Simplify right side
    57,879x = 2,716,483,493.36
  5. Step 5: Solve for x
    x = 2,716,483,493.36/57,879
  6. Step 6: Final answer
    x = 46,933.84

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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.