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Finding the Fourth Proportional to 57,997.35, 86,996.16 and 18,557.64

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Solution

The fourth proportional to 57,997.35, 86,996.16 and 18,557.64 is: 27,836.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,997.35 : 86,996.16 = 18,557.64 : x
  2. Step 2: Convert to fraction form
    57,997.35/86,996.16 = 18,557.64/x
  3. Step 3: Cross multiply
    57,997.35x = 86,996.16 × 18,557.64
  4. Step 4: Simplify right side
    57,997.35x = 1,614,443,418.66
  5. Step 5: Solve for x
    x = 1,614,443,418.66/57,997.35
  6. Step 6: Final answer
    x = 27,836.50

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1.5x scale

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.