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Finding the Fourth Proportional to 7,969.88, 10,998.42 and 4,433.44

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Solution

The fourth proportional to 7,969.88, 10,998.42 and 4,433.44 is: 6,118.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.88 : 10,998.42 = 4,433.44 : x
  2. Step 2: Convert to fraction form
    7,969.88/10,998.42 = 4,433.44/x
  3. Step 3: Cross multiply
    7,969.88x = 10,998.42 × 4,433.44
  4. Step 4: Simplify right side
    7,969.88x = 48,760,835.16
  5. Step 5: Solve for x
    x = 48,760,835.16/7,969.88
  6. Step 6: Final answer
    x = 6,118.14

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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.