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Finding the Third Proportional to 19,489.50 and 43,407

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Solution

The third proportional to 19,489.50 and 43,407 is: 96,676.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.50 : 43,407 = 43,407 : x
  2. Step 2: Convert to fraction form
    19,489.50/43,407 = 43,407/x
  3. Step 3: Cross multiply
    19,489.50x = 43,407 × 43,407
  4. Step 4: Simplify right side
    19,489.50x = 1,884,167,649
  5. Step 5: Solve for x
    x = 1,884,167,649/19,489.50
  6. Step 6: Final answer
    x = 96,676.04

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.