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Finding the Third Proportional to 11,948.50 and 17,511

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Solution

The third proportional to 11,948.50 and 17,511 is: 25,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.50 : 17,511 = 17,511 : x
  2. Step 2: Convert to fraction form
    11,948.50/17,511 = 17,511/x
  3. Step 3: Cross multiply
    11,948.50x = 17,511 × 17,511
  4. Step 4: Simplify right side
    11,948.50x = 306,635,121
  5. Step 5: Solve for x
    x = 306,635,121/11,948.50
  6. Step 6: Final answer
    x = 25,663.06

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.