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Finding the Fourth Proportional to 57,980.42, 86,950.11 and 27,581.94

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Solution

The fourth proportional to 57,980.42, 86,950.11 and 27,581.94 is: 41,363.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,980.42 : 86,950.11 = 27,581.94 : x
  2. Step 2: Convert to fraction form
    57,980.42/86,950.11 = 27,581.94/x
  3. Step 3: Cross multiply
    57,980.42x = 86,950.11 × 27,581.94
  4. Step 4: Simplify right side
    57,980.42x = 2,398,252,717.01
  5. Step 5: Solve for x
    x = 2,398,252,717.01/57,980.42
  6. Step 6: Final answer
    x = 41,363.15

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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.