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Finding the Third Proportional to 15,597.75 and 20,343

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Solution

The third proportional to 15,597.75 and 20,343 is: 26,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,597.75 : 20,343 = 20,343 : x
  2. Step 2: Convert to fraction form
    15,597.75/20,343 = 20,343/x
  3. Step 3: Cross multiply
    15,597.75x = 20,343 × 20,343
  4. Step 4: Simplify right side
    15,597.75x = 413,837,649
  5. Step 5: Solve for x
    x = 413,837,649/15,597.75
  6. Step 6: Final answer
    x = 26,531.88

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.