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Finding the Fourth Proportional to 81,594.54, 122,391.81 and 26,229.42

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Solution

The fourth proportional to 81,594.54, 122,391.81 and 26,229.42 is: 39,344.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,594.54 : 122,391.81 = 26,229.42 : x
  2. Step 2: Convert to fraction form
    81,594.54/122,391.81 = 26,229.42/x
  3. Step 3: Cross multiply
    81,594.54x = 122,391.81 × 26,229.42
  4. Step 4: Simplify right side
    81,594.54x = 3,210,266,189.05
  5. Step 5: Solve for x
    x = 3,210,266,189.05/81,594.54
  6. Step 6: Final answer
    x = 39,344.13

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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.