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Finding the Third Proportional to 27,860 and 59,860

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Solution

The third proportional to 27,860 and 59,860 is: 128,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860 : 59,860 = 59,860 : x
  2. Step 2: Convert to fraction form
    27,860/59,860 = 59,860/x
  3. Step 3: Cross multiply
    27,860x = 59,860 × 59,860
  4. Step 4: Simplify right side
    27,860x = 3,583,219,600
  5. Step 5: Solve for x
    x = 3,583,219,600/27,860
  6. Step 6: Final answer
    x = 128,615.20

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.