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Finding the Third Proportional to 54,906 and 82,113

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Solution

The third proportional to 54,906 and 82,113 is: 122,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,906 : 82,113 = 82,113 : x
  2. Step 2: Convert to fraction form
    54,906/82,113 = 82,113/x
  3. Step 3: Cross multiply
    54,906x = 82,113 × 82,113
  4. Step 4: Simplify right side
    54,906x = 6,742,544,769
  5. Step 5: Solve for x
    x = 6,742,544,769/54,906
  6. Step 6: Final answer
    x = 122,801.60

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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.