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Finding the Third Proportional to 15.35 and 28.48

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Solution

The third proportional to 15.35 and 28.48 is: 52.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.35 : 28.48 = 28.48 : x
  2. Step 2: Convert to fraction form
    15.35/28.48 = 28.48/x
  3. Step 3: Cross multiply
    15.35x = 28.48 × 28.48
  4. Step 4: Simplify right side
    15.35x = 810.91
  5. Step 5: Solve for x
    x = 810.91/15.35
  6. Step 6: Final answer
    x = 52.84

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.