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Finding the Fourth Proportional to 38,668.50, 53,361.62 and 22,753.98

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Solution

The fourth proportional to 38,668.50, 53,361.62 and 22,753.98 is: 31,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668.50 : 53,361.62 = 22,753.98 : x
  2. Step 2: Convert to fraction form
    38,668.50/53,361.62 = 22,753.98/x
  3. Step 3: Cross multiply
    38,668.50x = 53,361.62 × 22,753.98
  4. Step 4: Simplify right side
    38,668.50x = 1,214,189,234.25
  5. Step 5: Solve for x
    x = 1,214,189,234.25/38,668.50
  6. Step 6: Final answer
    x = 31,399.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.