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Finding the Third Proportional to 9,137.50 and 13,670

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Solution

The third proportional to 9,137.50 and 13,670 is: 20,450.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.50 : 13,670 = 13,670 : x
  2. Step 2: Convert to fraction form
    9,137.50/13,670 = 13,670/x
  3. Step 3: Cross multiply
    9,137.50x = 13,670 × 13,670
  4. Step 4: Simplify right side
    9,137.50x = 186,868,900
  5. Step 5: Solve for x
    x = 186,868,900/9,137.50
  6. Step 6: Final answer
    x = 20,450.77

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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.