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Finding the Third Proportional to 13,536 and 14,720

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Solution

The third proportional to 13,536 and 14,720 is: 16,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536 : 14,720 = 14,720 : x
  2. Step 2: Convert to fraction form
    13,536/14,720 = 14,720/x
  3. Step 3: Cross multiply
    13,536x = 14,720 × 14,720
  4. Step 4: Simplify right side
    13,536x = 216,678,400
  5. Step 5: Solve for x
    x = 216,678,400/13,536
  6. Step 6: Final answer
    x = 16,007.57

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.