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Finding the Third Proportional to 15,100 and 32,720

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Solution

The third proportional to 15,100 and 32,720 is: 70,900.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,100 : 32,720 = 32,720 : x
  2. Step 2: Convert to fraction form
    15,100/32,720 = 32,720/x
  3. Step 3: Cross multiply
    15,100x = 32,720 × 32,720
  4. Step 4: Simplify right side
    15,100x = 1,070,598,400
  5. Step 5: Solve for x
    x = 1,070,598,400/15,100
  6. Step 6: Final answer
    x = 70,900.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.