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Finding the Fourth Proportional to 43,624.86, 65,436.57 and 10,792.86

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Solution

The fourth proportional to 43,624.86, 65,436.57 and 10,792.86 is: 16,189.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,624.86 : 65,436.57 = 10,792.86 : x
  2. Step 2: Convert to fraction form
    43,624.86/65,436.57 = 10,792.86/x
  3. Step 3: Cross multiply
    43,624.86x = 65,436.57 × 10,792.86
  4. Step 4: Simplify right side
    43,624.86x = 706,247,738.89
  5. Step 5: Solve for x
    x = 706,247,738.89/43,624.86
  6. Step 6: Final answer
    x = 16,189.11

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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.