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Finding the Third Proportional to 1,917 and 4,654.13

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Solution

The third proportional to 1,917 and 4,654.13 is: 11,299.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917 : 4,654.13 = 4,654.13 : x
  2. Step 2: Convert to fraction form
    1,917/4,654.13 = 4,654.13/x
  3. Step 3: Cross multiply
    1,917x = 4,654.13 × 4,654.13
  4. Step 4: Simplify right side
    1,917x = 21,660,879.52
  5. Step 5: Solve for x
    x = 21,660,879.52/1,917
  6. Step 6: Final answer
    x = 11,299.36

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.