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Finding the Third Proportional to 15,921 and 23,760

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Solution

The third proportional to 15,921 and 23,760 is: 35,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921 : 23,760 = 23,760 : x
  2. Step 2: Convert to fraction form
    15,921/23,760 = 23,760/x
  3. Step 3: Cross multiply
    15,921x = 23,760 × 23,760
  4. Step 4: Simplify right side
    15,921x = 564,537,600
  5. Step 5: Solve for x
    x = 564,537,600/15,921
  6. Step 6: Final answer
    x = 35,458.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.