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Finding the Third Proportional to 6,480 and 10,692

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Solution

The third proportional to 6,480 and 10,692 is: 17,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480 : 10,692 = 10,692 : x
  2. Step 2: Convert to fraction form
    6,480/10,692 = 10,692/x
  3. Step 3: Cross multiply
    6,480x = 10,692 × 10,692
  4. Step 4: Simplify right side
    6,480x = 114,318,864
  5. Step 5: Solve for x
    x = 114,318,864/6,480
  6. Step 6: Final answer
    x = 17,641.80

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.