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Finding the Third Proportional to 964.78 and 2,079.47

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Solution

The third proportional to 964.78 and 2,079.47 is: 4,482.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.78 : 2,079.47 = 2,079.47 : x
  2. Step 2: Convert to fraction form
    964.78/2,079.47 = 2,079.47/x
  3. Step 3: Cross multiply
    964.78x = 2,079.47 × 2,079.47
  4. Step 4: Simplify right side
    964.78x = 4,324,190.28
  5. Step 5: Solve for x
    x = 4,324,190.28/964.78
  6. Step 6: Final answer
    x = 4,482.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.