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Finding the Third Proportional to 12,318 and 26,580

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Solution

The third proportional to 12,318 and 26,580 is: 57,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318 : 26,580 = 26,580 : x
  2. Step 2: Convert to fraction form
    12,318/26,580 = 26,580/x
  3. Step 3: Cross multiply
    12,318x = 26,580 × 26,580
  4. Step 4: Simplify right side
    12,318x = 706,496,400
  5. Step 5: Solve for x
    x = 706,496,400/12,318
  6. Step 6: Final answer
    x = 57,354.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.