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Finding the Third Proportional to 27,600 and 42,475

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Solution

The third proportional to 27,600 and 42,475 is: 65,366.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,600 : 42,475 = 42,475 : x
  2. Step 2: Convert to fraction form
    27,600/42,475 = 42,475/x
  3. Step 3: Cross multiply
    27,600x = 42,475 × 42,475
  4. Step 4: Simplify right side
    27,600x = 1,804,125,625
  5. Step 5: Solve for x
    x = 1,804,125,625/27,600
  6. Step 6: Final answer
    x = 65,366.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.