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Finding the Third Proportional to 11,677.50 and 14,188.50

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Solution

The third proportional to 11,677.50 and 14,188.50 is: 17,239.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,677.50 : 14,188.50 = 14,188.50 : x
  2. Step 2: Convert to fraction form
    11,677.50/14,188.50 = 14,188.50/x
  3. Step 3: Cross multiply
    11,677.50x = 14,188.50 × 14,188.50
  4. Step 4: Simplify right side
    11,677.50x = 201,313,532.25
  5. Step 5: Solve for x
    x = 201,313,532.25/11,677.50
  6. Step 6: Final answer
    x = 17,239.44

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.