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Finding the Fourth Proportional to 8,599.42, 12,899.82 and 3,669.11

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Solution

The fourth proportional to 8,599.42, 12,899.82 and 3,669.11 is: 5,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.42 : 12,899.82 = 3,669.11 : x
  2. Step 2: Convert to fraction form
    8,599.42/12,899.82 = 3,669.11/x
  3. Step 3: Cross multiply
    8,599.42x = 12,899.82 × 3,669.11
  4. Step 4: Simplify right side
    8,599.42x = 47,330,858.56
  5. Step 5: Solve for x
    x = 47,330,858.56/8,599.42
  6. Step 6: Final answer
    x = 5,503.96

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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.