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Finding the Fourth Proportional to 18,850.23, 26,011.80 and 10,892.97

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Solution

The fourth proportional to 18,850.23, 26,011.80 and 10,892.97 is: 15,031.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850.23 : 26,011.80 = 10,892.97 : x
  2. Step 2: Convert to fraction form
    18,850.23/26,011.80 = 10,892.97/x
  3. Step 3: Cross multiply
    18,850.23x = 26,011.80 × 10,892.97
  4. Step 4: Simplify right side
    18,850.23x = 283,345,743.44
  5. Step 5: Solve for x
    x = 283,345,743.44/18,850.23
  6. Step 6: Final answer
    x = 15,031.42

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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.