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Finding the Fourth Proportional to 11,563.97, 15,958.49 and 6,787.33

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Solution

The fourth proportional to 11,563.97, 15,958.49 and 6,787.33 is: 9,366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,563.97 : 15,958.49 = 6,787.33 : x
  2. Step 2: Convert to fraction form
    11,563.97/15,958.49 = 6,787.33/x
  3. Step 3: Cross multiply
    11,563.97x = 15,958.49 × 6,787.33
  4. Step 4: Simplify right side
    11,563.97x = 108,315,464.10
  5. Step 5: Solve for x
    x = 108,315,464.10/11,563.97
  6. Step 6: Final answer
    x = 9,366.64

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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.