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Finding the Third Proportional to 15,672 and 34,310

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Solution

The third proportional to 15,672 and 34,310 is: 75,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672 : 34,310 = 34,310 : x
  2. Step 2: Convert to fraction form
    15,672/34,310 = 34,310/x
  3. Step 3: Cross multiply
    15,672x = 34,310 × 34,310
  4. Step 4: Simplify right side
    15,672x = 1,177,176,100
  5. Step 5: Solve for x
    x = 1,177,176,100/15,672
  6. Step 6: Final answer
    x = 75,113.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.