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Finding the Fourth Proportional to 71,351.40, 107,017.85 and 26,972.37

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Solution

The fourth proportional to 71,351.40, 107,017.85 and 26,972.37 is: 40,455.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,351.40 : 107,017.85 = 26,972.37 : x
  2. Step 2: Convert to fraction form
    71,351.40/107,017.85 = 26,972.37/x
  3. Step 3: Cross multiply
    71,351.40x = 107,017.85 × 26,972.37
  4. Step 4: Simplify right side
    71,351.40x = 2,886,524,911.94
  5. Step 5: Solve for x
    x = 2,886,524,911.94/71,351.40
  6. Step 6: Final answer
    x = 40,455.06

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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.