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Finding the Third Proportional to 13,625 and 18,762.50

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Solution

The third proportional to 13,625 and 18,762.50 is: 25,837.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625 : 18,762.50 = 18,762.50 : x
  2. Step 2: Convert to fraction form
    13,625/18,762.50 = 18,762.50/x
  3. Step 3: Cross multiply
    13,625x = 18,762.50 × 18,762.50
  4. Step 4: Simplify right side
    13,625x = 352,031,406.25
  5. Step 5: Solve for x
    x = 352,031,406.25/13,625
  6. Step 6: Final answer
    x = 25,837.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.