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Finding the Fourth Proportional to 2,199.94, 3,299.91 and 1,711.60

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Solution

The fourth proportional to 2,199.94, 3,299.91 and 1,711.60 is: 2,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.94 : 3,299.91 = 1,711.60 : x
  2. Step 2: Convert to fraction form
    2,199.94/3,299.91 = 1,711.60/x
  3. Step 3: Cross multiply
    2,199.94x = 3,299.91 × 1,711.60
  4. Step 4: Simplify right side
    2,199.94x = 5,648,125.96
  5. Step 5: Solve for x
    x = 5,648,125.96/2,199.94
  6. Step 6: Final answer
    x = 2,567.40

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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.