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Finding the Fourth Proportional to 3,333.99, 5,000.58 and 1,385.94

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Solution

The fourth proportional to 3,333.99, 5,000.58 and 1,385.94 is: 2,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.99 : 5,000.58 = 1,385.94 : x
  2. Step 2: Convert to fraction form
    3,333.99/5,000.58 = 1,385.94/x
  3. Step 3: Cross multiply
    3,333.99x = 5,000.58 × 1,385.94
  4. Step 4: Simplify right side
    3,333.99x = 6,930,503.85
  5. Step 5: Solve for x
    x = 6,930,503.85/3,333.99
  6. Step 6: Final answer
    x = 2,078.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.