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Finding the Fourth Proportional to 18,873.56, 26,046.06 and 10,918.28

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Solution

The fourth proportional to 18,873.56, 26,046.06 and 10,918.28 is: 15,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.56 : 26,046.06 = 10,918.28 : x
  2. Step 2: Convert to fraction form
    18,873.56/26,046.06 = 10,918.28/x
  3. Step 3: Cross multiply
    18,873.56x = 26,046.06 × 10,918.28
  4. Step 4: Simplify right side
    18,873.56x = 284,378,175.98
  5. Step 5: Solve for x
    x = 284,378,175.98/18,873.56
  6. Step 6: Final answer
    x = 15,067.54

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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.