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Finding the Third Proportional to 15,291 and 16,533

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Solution

The third proportional to 15,291 and 16,533 is: 17,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291 : 16,533 = 16,533 : x
  2. Step 2: Convert to fraction form
    15,291/16,533 = 16,533/x
  3. Step 3: Cross multiply
    15,291x = 16,533 × 16,533
  4. Step 4: Simplify right side
    15,291x = 273,340,089
  5. Step 5: Solve for x
    x = 273,340,089/15,291
  6. Step 6: Final answer
    x = 17,875.88

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.