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Finding the Third Proportional to 6,896 and 14,640

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Solution

The third proportional to 6,896 and 14,640 is: 31,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,896 : 14,640 = 14,640 : x
  2. Step 2: Convert to fraction form
    6,896/14,640 = 14,640/x
  3. Step 3: Cross multiply
    6,896x = 14,640 × 14,640
  4. Step 4: Simplify right side
    6,896x = 214,329,600
  5. Step 5: Solve for x
    x = 214,329,600/6,896
  6. Step 6: Final answer
    x = 31,080.28

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.