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Finding the Fourth Proportional to 44,409.88, 66,662.22 and 19,121.92

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Solution

The fourth proportional to 44,409.88, 66,662.22 and 19,121.92 is: 28,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,409.88 : 66,662.22 = 19,121.92 : x
  2. Step 2: Convert to fraction form
    44,409.88/66,662.22 = 19,121.92/x
  3. Step 3: Cross multiply
    44,409.88x = 66,662.22 × 19,121.92
  4. Step 4: Simplify right side
    44,409.88x = 1,274,709,637.86
  5. Step 5: Solve for x
    x = 1,274,709,637.86/44,409.88
  6. Step 6: Final answer
    x = 28,703.29

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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.