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Finding the Fourth Proportional to 69,366.65, 104,063.10 and 21,993.68

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Solution

The fourth proportional to 69,366.65, 104,063.10 and 21,993.68 is: 32,994.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,366.65 : 104,063.10 = 21,993.68 : x
  2. Step 2: Convert to fraction form
    69,366.65/104,063.10 = 21,993.68/x
  3. Step 3: Cross multiply
    69,366.65x = 104,063.10 × 21,993.68
  4. Step 4: Simplify right side
    69,366.65x = 2,288,730,000.89
  5. Step 5: Solve for x
    x = 2,288,730,000.89/69,366.65
  6. Step 6: Final answer
    x = 32,994.67

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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.