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Finding the Third Proportional to 4,188 and 10,875

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Solution

The third proportional to 4,188 and 10,875 is: 28,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188 : 10,875 = 10,875 : x
  2. Step 2: Convert to fraction form
    4,188/10,875 = 10,875/x
  3. Step 3: Cross multiply
    4,188x = 10,875 × 10,875
  4. Step 4: Simplify right side
    4,188x = 118,265,625
  5. Step 5: Solve for x
    x = 118,265,625/4,188
  6. Step 6: Final answer
    x = 28,239.17

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.