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Finding the Fourth Proportional to 11,040.39, 15,235.71 and 6,072.39

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Solution

The fourth proportional to 11,040.39, 15,235.71 and 6,072.39 is: 8,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.39 : 15,235.71 = 6,072.39 : x
  2. Step 2: Convert to fraction form
    11,040.39/15,235.71 = 6,072.39/x
  3. Step 3: Cross multiply
    11,040.39x = 15,235.71 × 6,072.39
  4. Step 4: Simplify right side
    11,040.39x = 92,517,173.05
  5. Step 5: Solve for x
    x = 92,517,173.05/11,040.39
  6. Step 6: Final answer
    x = 8,379.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.