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Finding the Third Proportional to 13,375 and 20,700

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Solution

The third proportional to 13,375 and 20,700 is: 32,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375 : 20,700 = 20,700 : x
  2. Step 2: Convert to fraction form
    13,375/20,700 = 20,700/x
  3. Step 3: Cross multiply
    13,375x = 20,700 × 20,700
  4. Step 4: Simplify right side
    13,375x = 428,490,000
  5. Step 5: Solve for x
    x = 428,490,000/13,375
  6. Step 6: Final answer
    x = 32,036.64

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.