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Finding the Fourth Proportional to 57,893.46, 86,985.47 and 36,842.64

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Solution

The fourth proportional to 57,893.46, 86,985.47 and 36,842.64 is: 55,356.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,893.46 : 86,985.47 = 36,842.64 : x
  2. Step 2: Convert to fraction form
    57,893.46/86,985.47 = 36,842.64/x
  3. Step 3: Cross multiply
    57,893.46x = 86,985.47 × 36,842.64
  4. Step 4: Simplify right side
    57,893.46x = 3,204,774,356.44
  5. Step 5: Solve for x
    x = 3,204,774,356.44/57,893.46
  6. Step 6: Final answer
    x = 55,356.41

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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.