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Finding the Third Proportional to 11,882 and 18,688.50

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Solution

The third proportional to 11,882 and 18,688.50 is: 29,394.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,882 : 18,688.50 = 18,688.50 : x
  2. Step 2: Convert to fraction form
    11,882/18,688.50 = 18,688.50/x
  3. Step 3: Cross multiply
    11,882x = 18,688.50 × 18,688.50
  4. Step 4: Simplify right side
    11,882x = 349,260,032.25
  5. Step 5: Solve for x
    x = 349,260,032.25/11,882
  6. Step 6: Final answer
    x = 29,394.04

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.