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Finding the Third Proportional to 11,622.50 and 17,543

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Solution

The third proportional to 11,622.50 and 17,543 is: 26,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.50 : 17,543 = 17,543 : x
  2. Step 2: Convert to fraction form
    11,622.50/17,543 = 17,543/x
  3. Step 3: Cross multiply
    11,622.50x = 17,543 × 17,543
  4. Step 4: Simplify right side
    11,622.50x = 307,756,849
  5. Step 5: Solve for x
    x = 307,756,849/11,622.50
  6. Step 6: Final answer
    x = 26,479.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.