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Finding the Third Proportional to 12,160 and 14,656

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Solution

The third proportional to 12,160 and 14,656 is: 17,664.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160 : 14,656 = 14,656 : x
  2. Step 2: Convert to fraction form
    12,160/14,656 = 14,656/x
  3. Step 3: Cross multiply
    12,160x = 14,656 × 14,656
  4. Step 4: Simplify right side
    12,160x = 214,798,336
  5. Step 5: Solve for x
    x = 214,798,336/12,160
  6. Step 6: Final answer
    x = 17,664.34

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.