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Finding the Third Proportional to 7,182 and 15,543

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Solution

The third proportional to 7,182 and 15,543 is: 33,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182 : 15,543 = 15,543 : x
  2. Step 2: Convert to fraction form
    7,182/15,543 = 15,543/x
  3. Step 3: Cross multiply
    7,182x = 15,543 × 15,543
  4. Step 4: Simplify right side
    7,182x = 241,584,849
  5. Step 5: Solve for x
    x = 241,584,849/7,182
  6. Step 6: Final answer
    x = 33,637.55

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.