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Finding the Fourth Proportional to 44,390.38, 66,569.98 and 12,791.99

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Solution

The fourth proportional to 44,390.38, 66,569.98 and 12,791.99 is: 19,183.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,390.38 : 66,569.98 = 12,791.99 : x
  2. Step 2: Convert to fraction form
    44,390.38/66,569.98 = 12,791.99/x
  3. Step 3: Cross multiply
    44,390.38x = 66,569.98 × 12,791.99
  4. Step 4: Simplify right side
    44,390.38x = 851,562,518.46
  5. Step 5: Solve for x
    x = 851,562,518.46/44,390.38
  6. Step 6: Final answer
    x = 19,183.49

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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.