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Finding the Third Proportional to 1,357 and 1,832.75

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Solution

The third proportional to 1,357 and 1,832.75 is: 2,475.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357 : 1,832.75 = 1,832.75 : x
  2. Step 2: Convert to fraction form
    1,357/1,832.75 = 1,832.75/x
  3. Step 3: Cross multiply
    1,357x = 1,832.75 × 1,832.75
  4. Step 4: Simplify right side
    1,357x = 3,358,972.56
  5. Step 5: Solve for x
    x = 3,358,972.56/1,357
  6. Step 6: Final answer
    x = 2,475.29

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.