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Finding the Third Proportional to 41,643 and 66,231

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Solution

The third proportional to 41,643 and 66,231 is: 105,336.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,643 : 66,231 = 66,231 : x
  2. Step 2: Convert to fraction form
    41,643/66,231 = 66,231/x
  3. Step 3: Cross multiply
    41,643x = 66,231 × 66,231
  4. Step 4: Simplify right side
    41,643x = 4,386,545,361
  5. Step 5: Solve for x
    x = 4,386,545,361/41,643
  6. Step 6: Final answer
    x = 105,336.92

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.