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Finding the Fourth Proportional to 43,423.62, 65,063.88 and 39,792.12

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Solution

The fourth proportional to 43,423.62, 65,063.88 and 39,792.12 is: 59,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,423.62 : 65,063.88 = 39,792.12 : x
  2. Step 2: Convert to fraction form
    43,423.62/65,063.88 = 39,792.12/x
  3. Step 3: Cross multiply
    43,423.62x = 65,063.88 × 39,792.12
  4. Step 4: Simplify right side
    43,423.62x = 2,589,029,720.63
  5. Step 5: Solve for x
    x = 2,589,029,720.63/43,423.62
  6. Step 6: Final answer
    x = 59,622.61

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1.5x scale

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.