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Finding the Fourth Proportional to 18,556.20, 27,935.46 and 16,923.24

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Solution

The fourth proportional to 18,556.20, 27,935.46 and 16,923.24 is: 25,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.20 : 27,935.46 = 16,923.24 : x
  2. Step 2: Convert to fraction form
    18,556.20/27,935.46 = 16,923.24/x
  3. Step 3: Cross multiply
    18,556.20x = 27,935.46 × 16,923.24
  4. Step 4: Simplify right side
    18,556.20x = 472,758,494.09
  5. Step 5: Solve for x
    x = 472,758,494.09/18,556.20
  6. Step 6: Final answer
    x = 25,477.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.