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Finding the Third Proportional to 9,989 and 15,166

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Solution

The third proportional to 9,989 and 15,166 is: 23,026.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989 : 15,166 = 15,166 : x
  2. Step 2: Convert to fraction form
    9,989/15,166 = 15,166/x
  3. Step 3: Cross multiply
    9,989x = 15,166 × 15,166
  4. Step 4: Simplify right side
    9,989x = 230,007,556
  5. Step 5: Solve for x
    x = 230,007,556/9,989
  6. Step 6: Final answer
    x = 23,026.08

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.