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Finding the Fourth Proportional to 54,915.80, 82,373.70 and 32,754.20

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Solution

The fourth proportional to 54,915.80, 82,373.70 and 32,754.20 is: 49,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,915.80 : 82,373.70 = 32,754.20 : x
  2. Step 2: Convert to fraction form
    54,915.80/82,373.70 = 32,754.20/x
  3. Step 3: Cross multiply
    54,915.80x = 82,373.70 × 32,754.20
  4. Step 4: Simplify right side
    54,915.80x = 2,698,084,644.54
  5. Step 5: Solve for x
    x = 2,698,084,644.54/54,915.80
  6. Step 6: Final answer
    x = 49,131.30

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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.