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Finding the Third Proportional to 12,888.50 and 27,160

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Solution

The third proportional to 12,888.50 and 27,160 is: 57,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.50 : 27,160 = 27,160 : x
  2. Step 2: Convert to fraction form
    12,888.50/27,160 = 27,160/x
  3. Step 3: Cross multiply
    12,888.50x = 27,160 × 27,160
  4. Step 4: Simplify right side
    12,888.50x = 737,665,600
  5. Step 5: Solve for x
    x = 737,665,600/12,888.50
  6. Step 6: Final answer
    x = 57,234.40

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.