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Finding the Third Proportional to 54,004 and 81,750

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Solution

The third proportional to 54,004 and 81,750 is: 123,751.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,004 : 81,750 = 81,750 : x
  2. Step 2: Convert to fraction form
    54,004/81,750 = 81,750/x
  3. Step 3: Cross multiply
    54,004x = 81,750 × 81,750
  4. Step 4: Simplify right side
    54,004x = 6,683,062,500
  5. Step 5: Solve for x
    x = 6,683,062,500/54,004
  6. Step 6: Final answer
    x = 123,751.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.