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Finding the Fourth Proportional to 26,191, 36,143.58 and 15,013

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Solution

The fourth proportional to 26,191, 36,143.58 and 15,013 is: 20,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,191 : 36,143.58 = 15,013 : x
  2. Step 2: Convert to fraction form
    26,191/36,143.58 = 15,013/x
  3. Step 3: Cross multiply
    26,191x = 36,143.58 × 15,013
  4. Step 4: Simplify right side
    26,191x = 542,623,566.54
  5. Step 5: Solve for x
    x = 542,623,566.54/26,191
  6. Step 6: Final answer
    x = 20,717.94

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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.