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Finding the Fourth Proportional to 18,791.82, 28,204.65 and 10,034.22

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Solution

The fourth proportional to 18,791.82, 28,204.65 and 10,034.22 is: 15,060.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.82 : 28,204.65 = 10,034.22 : x
  2. Step 2: Convert to fraction form
    18,791.82/28,204.65 = 10,034.22/x
  3. Step 3: Cross multiply
    18,791.82x = 28,204.65 × 10,034.22
  4. Step 4: Simplify right side
    18,791.82x = 283,011,663.12
  5. Step 5: Solve for x
    x = 283,011,663.12/18,791.82
  6. Step 6: Final answer
    x = 15,060.36

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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.