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Finding the Third Proportional to 15,372 and 16,652

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Solution

The third proportional to 15,372 and 16,652 is: 18,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372 : 16,652 = 16,652 : x
  2. Step 2: Convert to fraction form
    15,372/16,652 = 16,652/x
  3. Step 3: Cross multiply
    15,372x = 16,652 × 16,652
  4. Step 4: Simplify right side
    15,372x = 277,289,104
  5. Step 5: Solve for x
    x = 277,289,104/15,372
  6. Step 6: Final answer
    x = 18,038.58

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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.