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Finding the Third Proportional to 13,776 and 18,960

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Solution

The third proportional to 13,776 and 18,960 is: 26,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776 : 18,960 = 18,960 : x
  2. Step 2: Convert to fraction form
    13,776/18,960 = 18,960/x
  3. Step 3: Cross multiply
    13,776x = 18,960 × 18,960
  4. Step 4: Simplify right side
    13,776x = 359,481,600
  5. Step 5: Solve for x
    x = 359,481,600/13,776
  6. Step 6: Final answer
    x = 26,094.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.