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Finding the Fourth Proportional to 54,658.80, 75,427.20 and 33,436.80

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Solution

The fourth proportional to 54,658.80, 75,427.20 and 33,436.80 is: 46,141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,658.80 : 75,427.20 = 33,436.80 : x
  2. Step 2: Convert to fraction form
    54,658.80/75,427.20 = 33,436.80/x
  3. Step 3: Cross multiply
    54,658.80x = 75,427.20 × 33,436.80
  4. Step 4: Simplify right side
    54,658.80x = 2,522,044,200.96
  5. Step 5: Solve for x
    x = 2,522,044,200.96/54,658.80
  6. Step 6: Final answer
    x = 46,141.59

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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.