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Finding the Third Proportional to 407.25 and 937.13

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Solution

The third proportional to 407.25 and 937.13 is: 2,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.25 : 937.13 = 937.13 : x
  2. Step 2: Convert to fraction form
    407.25/937.13 = 937.13/x
  3. Step 3: Cross multiply
    407.25x = 937.13 × 937.13
  4. Step 4: Simplify right side
    407.25x = 878,203.27
  5. Step 5: Solve for x
    x = 878,203.27/407.25
  6. Step 6: Final answer
    x = 2,156.42

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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.