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Finding the Fourth Proportional to 54,259.40, 81,401.90 and 22,651.89

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Solution

The fourth proportional to 54,259.40, 81,401.90 and 22,651.89 is: 33,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,259.40 : 81,401.90 = 22,651.89 : x
  2. Step 2: Convert to fraction form
    54,259.40/81,401.90 = 22,651.89/x
  3. Step 3: Cross multiply
    54,259.40x = 81,401.90 × 22,651.89
  4. Step 4: Simplify right side
    54,259.40x = 1,843,906,771.33
  5. Step 5: Solve for x
    x = 1,843,906,771.33/54,259.40
  6. Step 6: Final answer
    x = 33,983.18

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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.