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Finding the Fourth Proportional to 57,609.09, 86,425.43 and 32,660.28

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Solution

The fourth proportional to 57,609.09, 86,425.43 and 32,660.28 is: 48,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,609.09 : 86,425.43 = 32,660.28 : x
  2. Step 2: Convert to fraction form
    57,609.09/86,425.43 = 32,660.28/x
  3. Step 3: Cross multiply
    57,609.09x = 86,425.43 × 32,660.28
  4. Step 4: Simplify right side
    57,609.09x = 2,822,678,579.62
  5. Step 5: Solve for x
    x = 2,822,678,579.62/57,609.09
  6. Step 6: Final answer
    x = 48,997.10

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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.