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Finding the Fourth Proportional to 29,670.65, 40,945.50 and 16,241.92

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Solution

The fourth proportional to 29,670.65, 40,945.50 and 16,241.92 is: 22,413.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,670.65 : 40,945.50 = 16,241.92 : x
  2. Step 2: Convert to fraction form
    29,670.65/40,945.50 = 16,241.92/x
  3. Step 3: Cross multiply
    29,670.65x = 40,945.50 × 16,241.92
  4. Step 4: Simplify right side
    29,670.65x = 665,033,433.00
  5. Step 5: Solve for x
    x = 665,033,433.00/29,670.65
  6. Step 6: Final answer
    x = 22,413.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.