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Finding the Third Proportional to 12,543 and 29,160

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Solution

The third proportional to 12,543 and 29,160 is: 67,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543 : 29,160 = 29,160 : x
  2. Step 2: Convert to fraction form
    12,543/29,160 = 29,160/x
  3. Step 3: Cross multiply
    12,543x = 29,160 × 29,160
  4. Step 4: Simplify right side
    12,543x = 850,305,600
  5. Step 5: Solve for x
    x = 850,305,600/12,543
  6. Step 6: Final answer
    x = 67,791.25

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.