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Finding the Third Proportional to 31,186 and 48,009

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Solution

The third proportional to 31,186 and 48,009 is: 73,907.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186 : 48,009 = 48,009 : x
  2. Step 2: Convert to fraction form
    31,186/48,009 = 48,009/x
  3. Step 3: Cross multiply
    31,186x = 48,009 × 48,009
  4. Step 4: Simplify right side
    31,186x = 2,304,864,081
  5. Step 5: Solve for x
    x = 2,304,864,081/31,186
  6. Step 6: Final answer
    x = 73,907.01

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.