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Finding the Third Proportional to 574.50 and 1,317

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Solution

The third proportional to 574.50 and 1,317 is: 3,019.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.50 : 1,317 = 1,317 : x
  2. Step 2: Convert to fraction form
    574.50/1,317 = 1,317/x
  3. Step 3: Cross multiply
    574.50x = 1,317 × 1,317
  4. Step 4: Simplify right side
    574.50x = 1,734,489
  5. Step 5: Solve for x
    x = 1,734,489/574.50
  6. Step 6: Final answer
    x = 3,019.13

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Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.