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Finding the Third Proportional to 55,388 and 83,151

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Solution

The third proportional to 55,388 and 83,151 is: 124,830.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,388 : 83,151 = 83,151 : x
  2. Step 2: Convert to fraction form
    55,388/83,151 = 83,151/x
  3. Step 3: Cross multiply
    55,388x = 83,151 × 83,151
  4. Step 4: Simplify right side
    55,388x = 6,914,088,801
  5. Step 5: Solve for x
    x = 6,914,088,801/55,388
  6. Step 6: Final answer
    x = 124,830.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.