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Finding the Third Proportional to 11,270.25 and 20,070

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Solution

The third proportional to 11,270.25 and 20,070 is: 35,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.25 : 20,070 = 20,070 : x
  2. Step 2: Convert to fraction form
    11,270.25/20,070 = 20,070/x
  3. Step 3: Cross multiply
    11,270.25x = 20,070 × 20,070
  4. Step 4: Simplify right side
    11,270.25x = 402,804,900
  5. Step 5: Solve for x
    x = 402,804,900/11,270.25
  6. Step 6: Final answer
    x = 35,740.55

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.