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Finding the Third Proportional to 15,080.50 and 20,306

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Solution

The third proportional to 15,080.50 and 20,306 is: 27,342.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.50 : 20,306 = 20,306 : x
  2. Step 2: Convert to fraction form
    15,080.50/20,306 = 20,306/x
  3. Step 3: Cross multiply
    15,080.50x = 20,306 × 20,306
  4. Step 4: Simplify right side
    15,080.50x = 412,333,636
  5. Step 5: Solve for x
    x = 412,333,636/15,080.50
  6. Step 6: Final answer
    x = 27,342.17

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.