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Finding the Fourth Proportional to 18,584.64, 25,611.40 and 18,243.03

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Solution

The fourth proportional to 18,584.64, 25,611.40 and 18,243.03 is: 25,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,584.64 : 25,611.40 = 18,243.03 : x
  2. Step 2: Convert to fraction form
    18,584.64/25,611.40 = 18,243.03/x
  3. Step 3: Cross multiply
    18,584.64x = 25,611.40 × 18,243.03
  4. Step 4: Simplify right side
    18,584.64x = 467,229,538.54
  5. Step 5: Solve for x
    x = 467,229,538.54/18,584.64
  6. Step 6: Final answer
    x = 25,140.63

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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.