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Finding the Fourth Proportional to 54,295.86, 81,471.66 and 25,865.01

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Solution

The fourth proportional to 54,295.86, 81,471.66 and 25,865.01 is: 38,810.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,295.86 : 81,471.66 = 25,865.01 : x
  2. Step 2: Convert to fraction form
    54,295.86/81,471.66 = 25,865.01/x
  3. Step 3: Cross multiply
    54,295.86x = 81,471.66 × 25,865.01
  4. Step 4: Simplify right side
    54,295.86x = 2,107,265,300.62
  5. Step 5: Solve for x
    x = 2,107,265,300.62/54,295.86
  6. Step 6: Final answer
    x = 38,810.79

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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.