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Finding the Fourth Proportional to 43,477.92, 65,220.48 and 16,815.96

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Solution

The fourth proportional to 43,477.92, 65,220.48 and 16,815.96 is: 25,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,477.92 : 65,220.48 = 16,815.96 : x
  2. Step 2: Convert to fraction form
    43,477.92/65,220.48 = 16,815.96/x
  3. Step 3: Cross multiply
    43,477.92x = 65,220.48 × 16,815.96
  4. Step 4: Simplify right side
    43,477.92x = 1,096,744,982.86
  5. Step 5: Solve for x
    x = 1,096,744,982.86/43,477.92
  6. Step 6: Final answer
    x = 25,225.33

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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.