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Finding the Fourth Proportional to 57,368.43, 86,018.63 and 21,832.43

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Solution

The fourth proportional to 57,368.43, 86,018.63 and 21,832.43 is: 32,735.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,368.43 : 86,018.63 = 21,832.43 : x
  2. Step 2: Convert to fraction form
    57,368.43/86,018.63 = 21,832.43/x
  3. Step 3: Cross multiply
    57,368.43x = 86,018.63 × 21,832.43
  4. Step 4: Simplify right side
    57,368.43x = 1,877,995,178.92
  5. Step 5: Solve for x
    x = 1,877,995,178.92/57,368.43
  6. Step 6: Final answer
    x = 32,735.69

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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.