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Finding the Fourth Proportional to 15,958.97, 22,022.49 and 8,787.48

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Solution

The fourth proportional to 15,958.97, 22,022.49 and 8,787.48 is: 12,126.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.97 : 22,022.49 = 8,787.48 : x
  2. Step 2: Convert to fraction form
    15,958.97/22,022.49 = 8,787.48/x
  3. Step 3: Cross multiply
    15,958.97x = 22,022.49 × 8,787.48
  4. Step 4: Simplify right side
    15,958.97x = 193,522,190.43
  5. Step 5: Solve for x
    x = 193,522,190.43/15,958.97
  6. Step 6: Final answer
    x = 12,126.24

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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.