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Finding the Third Proportional to 9,367.50 and 19,977

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Solution

The third proportional to 9,367.50 and 19,977 is: 42,602.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,367.50 : 19,977 = 19,977 : x
  2. Step 2: Convert to fraction form
    9,367.50/19,977 = 19,977/x
  3. Step 3: Cross multiply
    9,367.50x = 19,977 × 19,977
  4. Step 4: Simplify right side
    9,367.50x = 399,080,529
  5. Step 5: Solve for x
    x = 399,080,529/9,367.50
  6. Step 6: Final answer
    x = 42,602.67

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.