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Finding the Fourth Proportional to 7,969.97, 10,998.78 and 4,433.38

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Solution

The fourth proportional to 7,969.97, 10,998.78 and 4,433.38 is: 6,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.97 : 10,998.78 = 4,433.38 : x
  2. Step 2: Convert to fraction form
    7,969.97/10,998.78 = 4,433.38/x
  3. Step 3: Cross multiply
    7,969.97x = 10,998.78 × 4,433.38
  4. Step 4: Simplify right side
    7,969.97x = 48,761,771.28
  5. Step 5: Solve for x
    x = 48,761,771.28/7,969.97
  6. Step 6: Final answer
    x = 6,118.19

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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.