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Finding the Fourth Proportional to 57,281.85, 79,043.85 and 33,410.61

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Solution

The fourth proportional to 57,281.85, 79,043.85 and 33,410.61 is: 46,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,281.85 : 79,043.85 = 33,410.61 : x
  2. Step 2: Convert to fraction form
    57,281.85/79,043.85 = 33,410.61/x
  3. Step 3: Cross multiply
    57,281.85x = 79,043.85 × 33,410.61
  4. Step 4: Simplify right side
    57,281.85x = 2,640,903,245.25
  5. Step 5: Solve for x
    x = 2,640,903,245.25/57,281.85
  6. Step 6: Final answer
    x = 46,103.67

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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.