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Finding the Fourth Proportional to 54,963.20, 82,444.80 and 51,276.80

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Solution

The fourth proportional to 54,963.20, 82,444.80 and 51,276.80 is: 76,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,963.20 : 82,444.80 = 51,276.80 : x
  2. Step 2: Convert to fraction form
    54,963.20/82,444.80 = 51,276.80/x
  3. Step 3: Cross multiply
    54,963.20x = 82,444.80 × 51,276.80
  4. Step 4: Simplify right side
    54,963.20x = 4,227,505,520.64
  5. Step 5: Solve for x
    x = 4,227,505,520.64/54,963.20
  6. Step 6: Final answer
    x = 76,915.20

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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.