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Finding the Fourth Proportional to 44,321.92, 66,492.80 and 16,620.16

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Solution

The fourth proportional to 44,321.92, 66,492.80 and 16,620.16 is: 24,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,321.92 : 66,492.80 = 16,620.16 : x
  2. Step 2: Convert to fraction form
    44,321.92/66,492.80 = 16,620.16/x
  3. Step 3: Cross multiply
    44,321.92x = 66,492.80 × 16,620.16
  4. Step 4: Simplify right side
    44,321.92x = 1,105,120,974.85
  5. Step 5: Solve for x
    x = 1,105,120,974.85/44,321.92
  6. Step 6: Final answer
    x = 24,933.96

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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.