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Finding the Third Proportional to 15,376 and 33,480

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Solution

The third proportional to 15,376 and 33,480 is: 72,900

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376 : 33,480 = 33,480 : x
  2. Step 2: Convert to fraction form
    15,376/33,480 = 33,480/x
  3. Step 3: Cross multiply
    15,376x = 33,480 × 33,480
  4. Step 4: Simplify right side
    15,376x = 1,120,910,400
  5. Step 5: Solve for x
    x = 1,120,910,400/15,376
  6. Step 6: Final answer
    x = 72,900

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.