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Finding the Third Proportional to 625.50 and 1,347

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Solution

The third proportional to 625.50 and 1,347 is: 2,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.50 : 1,347 = 1,347 : x
  2. Step 2: Convert to fraction form
    625.50/1,347 = 1,347/x
  3. Step 3: Cross multiply
    625.50x = 1,347 × 1,347
  4. Step 4: Simplify right side
    625.50x = 1,814,409
  5. Step 5: Solve for x
    x = 1,814,409/625.50
  6. Step 6: Final answer
    x = 2,900.73

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.