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Finding the Fourth Proportional to 10,599.11, 15,906.86 and 5,672.89

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Solution

The fourth proportional to 10,599.11, 15,906.86 and 5,672.89 is: 8,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,599.11 : 15,906.86 = 5,672.89 : x
  2. Step 2: Convert to fraction form
    10,599.11/15,906.86 = 5,672.89/x
  3. Step 3: Cross multiply
    10,599.11x = 15,906.86 × 5,672.89
  4. Step 4: Simplify right side
    10,599.11x = 90,237,867.03
  5. Step 5: Solve for x
    x = 90,237,867.03/10,599.11
  6. Step 6: Final answer
    x = 8,513.72

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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.