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Finding the Fourth Proportional to 9,969.16, 13,755.42 and 6,241

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Solution

The fourth proportional to 9,969.16, 13,755.42 and 6,241 is: 8,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969.16 : 13,755.42 = 6,241 : x
  2. Step 2: Convert to fraction form
    9,969.16/13,755.42 = 6,241/x
  3. Step 3: Cross multiply
    9,969.16x = 13,755.42 × 6,241
  4. Step 4: Simplify right side
    9,969.16x = 85,847,576.22
  5. Step 5: Solve for x
    x = 85,847,576.22/9,969.16
  6. Step 6: Final answer
    x = 8,611.31

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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.