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Finding the Fourth Proportional to 18,614.97, 27,893.25 and 15,830.19

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Solution

The fourth proportional to 18,614.97, 27,893.25 and 15,830.19 is: 23,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.97 : 27,893.25 = 15,830.19 : x
  2. Step 2: Convert to fraction form
    18,614.97/27,893.25 = 15,830.19/x
  3. Step 3: Cross multiply
    18,614.97x = 27,893.25 × 15,830.19
  4. Step 4: Simplify right side
    18,614.97x = 441,555,447.22
  5. Step 5: Solve for x
    x = 441,555,447.22/18,614.97
  6. Step 6: Final answer
    x = 23,720.45

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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.