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Finding the Third Proportional to 13,704.75 and 20,501.88

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Solution

The third proportional to 13,704.75 and 20,501.88 is: 30,670.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.75 : 20,501.88 = 20,501.88 : x
  2. Step 2: Convert to fraction form
    13,704.75/20,501.88 = 20,501.88/x
  3. Step 3: Cross multiply
    13,704.75x = 20,501.88 × 20,501.88
  4. Step 4: Simplify right side
    13,704.75x = 420,326,878.52
  5. Step 5: Solve for x
    x = 420,326,878.52/13,704.75
  6. Step 6: Final answer
    x = 30,670.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.