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Finding the Fourth Proportional to 11,265.99, 16,899.03 and 3,872.58

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Solution

The fourth proportional to 11,265.99, 16,899.03 and 3,872.58 is: 5,808.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,265.99 : 16,899.03 = 3,872.58 : x
  2. Step 2: Convert to fraction form
    11,265.99/16,899.03 = 3,872.58/x
  3. Step 3: Cross multiply
    11,265.99x = 16,899.03 × 3,872.58
  4. Step 4: Simplify right side
    11,265.99x = 65,442,845.60
  5. Step 5: Solve for x
    x = 65,442,845.60/11,265.99
  6. Step 6: Final answer
    x = 5,808.89

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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.