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Finding the Third Proportional to 14,253.75 and 18,911.25

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Solution

The third proportional to 14,253.75 and 18,911.25 is: 25,090.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.75 : 18,911.25 = 18,911.25 : x
  2. Step 2: Convert to fraction form
    14,253.75/18,911.25 = 18,911.25/x
  3. Step 3: Cross multiply
    14,253.75x = 18,911.25 × 18,911.25
  4. Step 4: Simplify right side
    14,253.75x = 357,635,376.56
  5. Step 5: Solve for x
    x = 357,635,376.56/14,253.75
  6. Step 6: Final answer
    x = 25,090.62

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.