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Finding the Third Proportional to 6,748 and 11,911

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Solution

The third proportional to 6,748 and 11,911 is: 21,024.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,748 : 11,911 = 11,911 : x
  2. Step 2: Convert to fraction form
    6,748/11,911 = 11,911/x
  3. Step 3: Cross multiply
    6,748x = 11,911 × 11,911
  4. Step 4: Simplify right side
    6,748x = 141,871,921
  5. Step 5: Solve for x
    x = 141,871,921/6,748
  6. Step 6: Final answer
    x = 21,024.29

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.