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Finding the Third Proportional to 12,378.38 and 27,218.25

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Solution

The third proportional to 12,378.38 and 27,218.25 is: 59,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378.38 : 27,218.25 = 27,218.25 : x
  2. Step 2: Convert to fraction form
    12,378.38/27,218.25 = 27,218.25/x
  3. Step 3: Cross multiply
    12,378.38x = 27,218.25 × 27,218.25
  4. Step 4: Simplify right side
    12,378.38x = 740,833,133.06
  5. Step 5: Solve for x
    x = 740,833,133.06/12,378.38
  6. Step 6: Final answer
    x = 59,848.98

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.