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Finding the Fourth Proportional to 8,236.93, 12,339.91 and 4,072.09

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Solution

The fourth proportional to 8,236.93, 12,339.91 and 4,072.09 is: 6,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.93 : 12,339.91 = 4,072.09 : x
  2. Step 2: Convert to fraction form
    8,236.93/12,339.91 = 4,072.09/x
  3. Step 3: Cross multiply
    8,236.93x = 12,339.91 × 4,072.09
  4. Step 4: Simplify right side
    8,236.93x = 50,249,224.11
  5. Step 5: Solve for x
    x = 50,249,224.11/8,236.93
  6. Step 6: Final answer
    x = 6,100.48

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1.5x scale

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.