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Finding the Fourth Proportional to 11,963.52, 16,513.92 and 8,608.32

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Solution

The fourth proportional to 11,963.52, 16,513.92 and 8,608.32 is: 11,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.52 : 16,513.92 = 8,608.32 : x
  2. Step 2: Convert to fraction form
    11,963.52/16,513.92 = 8,608.32/x
  3. Step 3: Cross multiply
    11,963.52x = 16,513.92 × 8,608.32
  4. Step 4: Simplify right side
    11,963.52x = 142,157,107.81
  5. Step 5: Solve for x
    x = 142,157,107.81/11,963.52
  6. Step 6: Final answer
    x = 11,882.55

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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.