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Finding the Fourth Proportional to 70,993.56, 106,508.87 and 26,621.15

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Solution

The fourth proportional to 70,993.56, 106,508.87 and 26,621.15 is: 39,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,993.56 : 106,508.87 = 26,621.15 : x
  2. Step 2: Convert to fraction form
    70,993.56/106,508.87 = 26,621.15/x
  3. Step 3: Cross multiply
    70,993.56x = 106,508.87 × 26,621.15
  4. Step 4: Simplify right side
    70,993.56x = 2,835,388,471.49
  5. Step 5: Solve for x
    x = 2,835,388,471.49/70,993.56
  6. Step 6: Final answer
    x = 39,938.67

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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.