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Finding the Third Proportional to 6,617 and 15,543

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Solution

The third proportional to 6,617 and 15,543 is: 36,509.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617 : 15,543 = 15,543 : x
  2. Step 2: Convert to fraction form
    6,617/15,543 = 15,543/x
  3. Step 3: Cross multiply
    6,617x = 15,543 × 15,543
  4. Step 4: Simplify right side
    6,617x = 241,584,849
  5. Step 5: Solve for x
    x = 241,584,849/6,617
  6. Step 6: Final answer
    x = 36,509.72

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.