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Finding the Fourth Proportional to 18,304.25, 27,453.92 and 5,157.63

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Solution

The fourth proportional to 18,304.25, 27,453.92 and 5,157.63 is: 7,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,304.25 : 27,453.92 = 5,157.63 : x
  2. Step 2: Convert to fraction form
    18,304.25/27,453.92 = 5,157.63/x
  3. Step 3: Cross multiply
    18,304.25x = 27,453.92 × 5,157.63
  4. Step 4: Simplify right side
    18,304.25x = 141,597,135.62
  5. Step 5: Solve for x
    x = 141,597,135.62/18,304.25
  6. Step 6: Final answer
    x = 7,735.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.