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Finding the Fourth Proportional to 54,793.20, 82,254.60 and 54,404.40

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Solution

The fourth proportional to 54,793.20, 82,254.60 and 54,404.40 is: 81,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,793.20 : 82,254.60 = 54,404.40 : x
  2. Step 2: Convert to fraction form
    54,793.20/82,254.60 = 54,404.40/x
  3. Step 3: Cross multiply
    54,793.20x = 82,254.60 × 54,404.40
  4. Step 4: Simplify right side
    54,793.20x = 4,475,012,160.24
  5. Step 5: Solve for x
    x = 4,475,012,160.24/54,793.20
  6. Step 6: Final answer
    x = 81,670.94

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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.