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Finding the Third Proportional to 15,696 and 34,656

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Solution

The third proportional to 15,696 and 34,656 is: 76,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696 : 34,656 = 34,656 : x
  2. Step 2: Convert to fraction form
    15,696/34,656 = 34,656/x
  3. Step 3: Cross multiply
    15,696x = 34,656 × 34,656
  4. Step 4: Simplify right side
    15,696x = 1,201,038,336
  5. Step 5: Solve for x
    x = 1,201,038,336/15,696
  6. Step 6: Final answer
    x = 76,518.75

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.