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Finding the Fourth Proportional to 48,794.40, 73,345.20 and 47,872.80

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Solution

The fourth proportional to 48,794.40, 73,345.20 and 47,872.80 is: 71,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,794.40 : 73,345.20 = 47,872.80 : x
  2. Step 2: Convert to fraction form
    48,794.40/73,345.20 = 47,872.80/x
  3. Step 3: Cross multiply
    48,794.40x = 73,345.20 × 47,872.80
  4. Step 4: Simplify right side
    48,794.40x = 3,511,240,090.56
  5. Step 5: Solve for x
    x = 3,511,240,090.56/48,794.40
  6. Step 6: Final answer
    x = 71,959.90

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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.