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Finding the Third Proportional to 42,950 and 66,371

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Solution

The third proportional to 42,950 and 66,371 is: 102,563.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,950 : 66,371 = 66,371 : x
  2. Step 2: Convert to fraction form
    42,950/66,371 = 66,371/x
  3. Step 3: Cross multiply
    42,950x = 66,371 × 66,371
  4. Step 4: Simplify right side
    42,950x = 4,405,109,641
  5. Step 5: Solve for x
    x = 4,405,109,641/42,950
  6. Step 6: Final answer
    x = 102,563.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.