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Finding the Third Proportional to 736.50 and 1,543

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Solution

The third proportional to 736.50 and 1,543 is: 3,232.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.50 : 1,543 = 1,543 : x
  2. Step 2: Convert to fraction form
    736.50/1,543 = 1,543/x
  3. Step 3: Cross multiply
    736.50x = 1,543 × 1,543
  4. Step 4: Simplify right side
    736.50x = 2,380,849
  5. Step 5: Solve for x
    x = 2,380,849/736.50
  6. Step 6: Final answer
    x = 3,232.65

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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.