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Finding the Third Proportional to 11,724 and 13,533

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Solution

The third proportional to 11,724 and 13,533 is: 15,621.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724 : 13,533 = 13,533 : x
  2. Step 2: Convert to fraction form
    11,724/13,533 = 13,533/x
  3. Step 3: Cross multiply
    11,724x = 13,533 × 13,533
  4. Step 4: Simplify right side
    11,724x = 183,142,089
  5. Step 5: Solve for x
    x = 183,142,089/11,724
  6. Step 6: Final answer
    x = 15,621.13

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.