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Finding the Third Proportional to 9,776 and 15,147

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Solution

The third proportional to 9,776 and 15,147 is: 23,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,776 : 15,147 = 15,147 : x
  2. Step 2: Convert to fraction form
    9,776/15,147 = 15,147/x
  3. Step 3: Cross multiply
    9,776x = 15,147 × 15,147
  4. Step 4: Simplify right side
    9,776x = 229,431,609
  5. Step 5: Solve for x
    x = 229,431,609/9,776
  6. Step 6: Final answer
    x = 23,468.86

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.