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Finding the Third Proportional to 28.34 and 61.03

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Solution

The third proportional to 28.34 and 61.03 is: 131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.34 : 61.03 = 61.03 : x
  2. Step 2: Convert to fraction form
    28.34/61.03 = 61.03/x
  3. Step 3: Cross multiply
    28.34x = 61.03 × 61.03
  4. Step 4: Simplify right side
    28.34x = 3,724.81
  5. Step 5: Solve for x
    x = 3,724.81/28.34
  6. Step 6: Final answer
    x = 131.45

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.