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Finding the Fourth Proportional to 54,512.99, 81,801.21 and 22,920.76

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Solution

The fourth proportional to 54,512.99, 81,801.21 and 22,920.76 is: 34,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,512.99 : 81,801.21 = 22,920.76 : x
  2. Step 2: Convert to fraction form
    54,512.99/81,801.21 = 22,920.76/x
  3. Step 3: Cross multiply
    54,512.99x = 81,801.21 × 22,920.76
  4. Step 4: Simplify right side
    54,512.99x = 1,874,945,975.72
  5. Step 5: Solve for x
    x = 1,874,945,975.72/54,512.99
  6. Step 6: Final answer
    x = 34,394.48

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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.