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Finding the Fourth Proportional to 4,351, 6,520.59 and 2,005.85

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Solution

The fourth proportional to 4,351, 6,520.59 and 2,005.85 is: 3,006.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,351 : 6,520.59 = 2,005.85 : x
  2. Step 2: Convert to fraction form
    4,351/6,520.59 = 2,005.85/x
  3. Step 3: Cross multiply
    4,351x = 6,520.59 × 2,005.85
  4. Step 4: Simplify right side
    4,351x = 13,079,325.45
  5. Step 5: Solve for x
    x = 13,079,325.45/4,351
  6. Step 6: Final answer
    x = 3,006.05

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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.