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Finding the Fourth Proportional to 81,783.26, 122,674.88 and 26,379.26

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Solution

The fourth proportional to 81,783.26, 122,674.88 and 26,379.26 is: 39,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,783.26 : 122,674.88 = 26,379.26 : x
  2. Step 2: Convert to fraction form
    81,783.26/122,674.88 = 26,379.26/x
  3. Step 3: Cross multiply
    81,783.26x = 122,674.88 × 26,379.26
  4. Step 4: Simplify right side
    81,783.26x = 3,236,072,554.99
  5. Step 5: Solve for x
    x = 3,236,072,554.99/81,783.26
  6. Step 6: Final answer
    x = 39,568.89

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Similar ratio
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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.