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Finding the Fourth Proportional to 8,717.64, 13,072.20 and 3,093.41

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Solution

The fourth proportional to 8,717.64, 13,072.20 and 3,093.41 is: 4,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.64 : 13,072.20 = 3,093.41 : x
  2. Step 2: Convert to fraction form
    8,717.64/13,072.20 = 3,093.41/x
  3. Step 3: Cross multiply
    8,717.64x = 13,072.20 × 3,093.41
  4. Step 4: Simplify right side
    8,717.64x = 40,437,608.84
  5. Step 5: Solve for x
    x = 40,437,608.84/8,717.64
  6. Step 6: Final answer
    x = 4,638.60

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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.