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Finding the Third Proportional to 41,013.50 and 66,970

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Solution

The third proportional to 41,013.50 and 66,970 is: 109,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,013.50 : 66,970 = 66,970 : x
  2. Step 2: Convert to fraction form
    41,013.50/66,970 = 66,970/x
  3. Step 3: Cross multiply
    41,013.50x = 66,970 × 66,970
  4. Step 4: Simplify right side
    41,013.50x = 4,484,980,900
  5. Step 5: Solve for x
    x = 4,484,980,900/41,013.50
  6. Step 6: Final answer
    x = 109,353.77

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.