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Finding the Fourth Proportional to 18,076.59, 27,142.43 and 17,185.59

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Solution

The fourth proportional to 18,076.59, 27,142.43 and 17,185.59 is: 25,804.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,076.59 : 27,142.43 = 17,185.59 : x
  2. Step 2: Convert to fraction form
    18,076.59/27,142.43 = 17,185.59/x
  3. Step 3: Cross multiply
    18,076.59x = 27,142.43 × 17,185.59
  4. Step 4: Simplify right side
    18,076.59x = 466,458,587.66
  5. Step 5: Solve for x
    x = 466,458,587.66/18,076.59
  6. Step 6: Final answer
    x = 25,804.57

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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.