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Finding the Third Proportional to 644 and 1,033

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Solution

The third proportional to 644 and 1,033 is: 1,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    644 : 1,033 = 1,033 : x
  2. Step 2: Convert to fraction form
    644/1,033 = 1,033/x
  3. Step 3: Cross multiply
    644x = 1,033 × 1,033
  4. Step 4: Simplify right side
    644x = 1,067,089
  5. Step 5: Solve for x
    x = 1,067,089/644
  6. Step 6: Final answer
    x = 1,656.97

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.