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Finding the Third Proportional to 445.13 and 956.63

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Solution

The third proportional to 445.13 and 956.63 is: 2,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.13 : 956.63 = 956.63 : x
  2. Step 2: Convert to fraction form
    445.13/956.63 = 956.63/x
  3. Step 3: Cross multiply
    445.13x = 956.63 × 956.63
  4. Step 4: Simplify right side
    445.13x = 915,131.39
  5. Step 5: Solve for x
    x = 915,131.39/445.13
  6. Step 6: Final answer
    x = 2,055.90

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.