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Finding the Fourth Proportional to 54,532.70, 81,800.87 and 15,086.51

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Solution

The fourth proportional to 54,532.70, 81,800.87 and 15,086.51 is: 22,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,532.70 : 81,800.87 = 15,086.51 : x
  2. Step 2: Convert to fraction form
    54,532.70/81,800.87 = 15,086.51/x
  3. Step 3: Cross multiply
    54,532.70x = 81,800.87 × 15,086.51
  4. Step 4: Simplify right side
    54,532.70x = 1,234,089,522.15
  5. Step 5: Solve for x
    x = 1,234,089,522.15/54,532.70
  6. Step 6: Final answer
    x = 22,630.27

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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.