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Finding the Third Proportional to 749 and 1,573

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Solution

The third proportional to 749 and 1,573 is: 3,303.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    749 : 1,573 = 1,573 : x
  2. Step 2: Convert to fraction form
    749/1,573 = 1,573/x
  3. Step 3: Cross multiply
    749x = 1,573 × 1,573
  4. Step 4: Simplify right side
    749x = 2,474,329
  5. Step 5: Solve for x
    x = 2,474,329/749
  6. Step 6: Final answer
    x = 3,303.51

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.