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Finding the Fourth Proportional to 43,706.98, 65,558.78 and 12,542.23

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Solution

The fourth proportional to 43,706.98, 65,558.78 and 12,542.23 is: 18,812.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,706.98 : 65,558.78 = 12,542.23 : x
  2. Step 2: Convert to fraction form
    43,706.98/65,558.78 = 12,542.23/x
  3. Step 3: Cross multiply
    43,706.98x = 65,558.78 × 12,542.23
  4. Step 4: Simplify right side
    43,706.98x = 822,253,297.28
  5. Step 5: Solve for x
    x = 822,253,297.28/43,706.98
  6. Step 6: Final answer
    x = 18,812.86

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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.