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Finding the Fourth Proportional to 57,393.35, 86,066.96 and 21,842.46

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Solution

The fourth proportional to 57,393.35, 86,066.96 and 21,842.46 is: 32,754.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,393.35 : 86,066.96 = 21,842.46 : x
  2. Step 2: Convert to fraction form
    57,393.35/86,066.96 = 21,842.46/x
  3. Step 3: Cross multiply
    57,393.35x = 86,066.96 × 21,842.46
  4. Step 4: Simplify right side
    57,393.35x = 1,879,914,021.91
  5. Step 5: Solve for x
    x = 1,879,914,021.91/57,393.35
  6. Step 6: Final answer
    x = 32,754.91

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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.