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Finding the Third Proportional to 928.13 and 1,908.56

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Solution

The third proportional to 928.13 and 1,908.56 is: 3,924.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    928.13 : 1,908.56 = 1,908.56 : x
  2. Step 2: Convert to fraction form
    928.13/1,908.56 = 1,908.56/x
  3. Step 3: Cross multiply
    928.13x = 1,908.56 × 1,908.56
  4. Step 4: Simplify right side
    928.13x = 3,642,610.82
  5. Step 5: Solve for x
    x = 3,642,610.82/928.13
  6. Step 6: Final answer
    x = 3,924.70

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.