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Finding the Fourth Proportional to 13,589.84, 18,736.62 and 8,801.32

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Solution

The fourth proportional to 13,589.84, 18,736.62 and 8,801.32 is: 12,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.84 : 18,736.62 = 8,801.32 : x
  2. Step 2: Convert to fraction form
    13,589.84/18,736.62 = 8,801.32/x
  3. Step 3: Cross multiply
    13,589.84x = 18,736.62 × 8,801.32
  4. Step 4: Simplify right side
    13,589.84x = 164,906,944.33
  5. Step 5: Solve for x
    x = 164,906,944.33/13,589.84
  6. Step 6: Final answer
    x = 12,134.58

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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.