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Finding the Fourth Proportional to 61,021.29, 91,545.73 and 32,940.74

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Solution

The fourth proportional to 61,021.29, 91,545.73 and 32,940.74 is: 49,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,021.29 : 91,545.73 = 32,940.74 : x
  2. Step 2: Convert to fraction form
    61,021.29/91,545.73 = 32,940.74/x
  3. Step 3: Cross multiply
    61,021.29x = 91,545.73 × 32,940.74
  4. Step 4: Simplify right side
    61,021.29x = 3,015,583,989.31
  5. Step 5: Solve for x
    x = 3,015,583,989.31/61,021.29
  6. Step 6: Final answer
    x = 49,418.56

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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.