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Finding the Third Proportional to 754.50 and 1,630

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Solution

The third proportional to 754.50 and 1,630 is: 3,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    754.50 : 1,630 = 1,630 : x
  2. Step 2: Convert to fraction form
    754.50/1,630 = 1,630/x
  3. Step 3: Cross multiply
    754.50x = 1,630 × 1,630
  4. Step 4: Simplify right side
    754.50x = 2,656,900
  5. Step 5: Solve for x
    x = 2,656,900/754.50
  6. Step 6: Final answer
    x = 3,521.40

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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.