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Finding the Third Proportional to 12,551 and 18,355.50

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Solution

The third proportional to 12,551 and 18,355.50 is: 26,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551 : 18,355.50 = 18,355.50 : x
  2. Step 2: Convert to fraction form
    12,551/18,355.50 = 18,355.50/x
  3. Step 3: Cross multiply
    12,551x = 18,355.50 × 18,355.50
  4. Step 4: Simplify right side
    12,551x = 336,924,380.25
  5. Step 5: Solve for x
    x = 336,924,380.25/12,551
  6. Step 6: Final answer
    x = 26,844.43

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.