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Finding the Third Proportional to 470.81 and 964.41

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Solution

The third proportional to 470.81 and 964.41 is: 1,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.81 : 964.41 = 964.41 : x
  2. Step 2: Convert to fraction form
    470.81/964.41 = 964.41/x
  3. Step 3: Cross multiply
    470.81x = 964.41 × 964.41
  4. Step 4: Simplify right side
    470.81x = 930,079.42
  5. Step 5: Solve for x
    x = 930,079.42/470.81
  6. Step 6: Final answer
    x = 1,975.48

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.