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Finding the Third Proportional to 442.88 and 940.13

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Solution

The third proportional to 442.88 and 940.13 is: 1,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.88 : 940.13 = 940.13 : x
  2. Step 2: Convert to fraction form
    442.88/940.13 = 940.13/x
  3. Step 3: Cross multiply
    442.88x = 940.13 × 940.13
  4. Step 4: Simplify right side
    442.88x = 883,835.02
  5. Step 5: Solve for x
    x = 883,835.02/442.88
  6. Step 6: Final answer
    x = 1,995.68

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.