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Finding the Fourth Proportional to 33,164.64, 45,759.24 and 18,821.28

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Solution

The fourth proportional to 33,164.64, 45,759.24 and 18,821.28 is: 25,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,164.64 : 45,759.24 = 18,821.28 : x
  2. Step 2: Convert to fraction form
    33,164.64/45,759.24 = 18,821.28/x
  3. Step 3: Cross multiply
    33,164.64x = 45,759.24 × 18,821.28
  4. Step 4: Simplify right side
    33,164.64x = 861,247,468.63
  5. Step 5: Solve for x
    x = 861,247,468.63/33,164.64
  6. Step 6: Final answer
    x = 25,968.85

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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.