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Finding the Fourth Proportional to 18,201.63, 27,159.69 and 17,087.07

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Solution

The fourth proportional to 18,201.63, 27,159.69 and 17,087.07 is: 25,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.63 : 27,159.69 = 17,087.07 : x
  2. Step 2: Convert to fraction form
    18,201.63/27,159.69 = 17,087.07/x
  3. Step 3: Cross multiply
    18,201.63x = 27,159.69 × 17,087.07
  4. Step 4: Simplify right side
    18,201.63x = 464,079,524.21
  5. Step 5: Solve for x
    x = 464,079,524.21/18,201.63
  6. Step 6: Final answer
    x = 25,496.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.