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Finding the Third Proportional to 417.38 and 961.88

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Solution

The third proportional to 417.38 and 961.88 is: 2,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.38 : 961.88 = 961.88 : x
  2. Step 2: Convert to fraction form
    417.38/961.88 = 961.88/x
  3. Step 3: Cross multiply
    417.38x = 961.88 × 961.88
  4. Step 4: Simplify right side
    417.38x = 925,203.52
  5. Step 5: Solve for x
    x = 925,203.52/417.38
  6. Step 6: Final answer
    x = 2,216.72

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.