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Finding the Fourth Proportional to 57,889.22, 79,889.09 and 34,015.55

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Solution

The fourth proportional to 57,889.22, 79,889.09 and 34,015.55 is: 46,942.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,889.22 : 79,889.09 = 34,015.55 : x
  2. Step 2: Convert to fraction form
    57,889.22/79,889.09 = 34,015.55/x
  3. Step 3: Cross multiply
    57,889.22x = 79,889.09 × 34,015.55
  4. Step 4: Simplify right side
    57,889.22x = 2,717,470,765.83
  5. Step 5: Solve for x
    x = 2,717,470,765.83/57,889.22
  6. Step 6: Final answer
    x = 46,942.61

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1.5x scale

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.