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Finding the Third Proportional to 10,142.50 and 15,171

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Solution

The third proportional to 10,142.50 and 15,171 is: 22,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.50 : 15,171 = 15,171 : x
  2. Step 2: Convert to fraction form
    10,142.50/15,171 = 15,171/x
  3. Step 3: Cross multiply
    10,142.50x = 15,171 × 15,171
  4. Step 4: Simplify right side
    10,142.50x = 230,159,241
  5. Step 5: Solve for x
    x = 230,159,241/10,142.50
  6. Step 6: Final answer
    x = 22,692.56

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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.