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Finding the Third Proportional to 19,211.63 and 39,376.13

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Solution

The third proportional to 19,211.63 and 39,376.13 is: 80,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.63 : 39,376.13 = 39,376.13 : x
  2. Step 2: Convert to fraction form
    19,211.63/39,376.13 = 39,376.13/x
  3. Step 3: Cross multiply
    19,211.63x = 39,376.13 × 39,376.13
  4. Step 4: Simplify right side
    19,211.63x = 1,550,479,220.02
  5. Step 5: Solve for x
    x = 1,550,479,220.02/19,211.63
  6. Step 6: Final answer
    x = 80,705.26

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.