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Finding the Third Proportional to 956.81 and 1,480.78

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Solution

The third proportional to 956.81 and 1,480.78 is: 2,291.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.81 : 1,480.78 = 1,480.78 : x
  2. Step 2: Convert to fraction form
    956.81/1,480.78 = 1,480.78/x
  3. Step 3: Cross multiply
    956.81x = 1,480.78 × 1,480.78
  4. Step 4: Simplify right side
    956.81x = 2,192,713.11
  5. Step 5: Solve for x
    x = 2,192,713.11/956.81
  6. Step 6: Final answer
    x = 2,291.69

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.