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Finding the Third Proportional to 1,357 and 2,525

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Solution

The third proportional to 1,357 and 2,525 is: 4,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357 : 2,525 = 2,525 : x
  2. Step 2: Convert to fraction form
    1,357/2,525 = 2,525/x
  3. Step 3: Cross multiply
    1,357x = 2,525 × 2,525
  4. Step 4: Simplify right side
    1,357x = 6,375,625
  5. Step 5: Solve for x
    x = 6,375,625/1,357
  6. Step 6: Final answer
    x = 4,698.32

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.