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Finding the Fourth Proportional to 49,027.40, 73,541.10 and 20,940.20

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Solution

The fourth proportional to 49,027.40, 73,541.10 and 20,940.20 is: 31,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,027.40 : 73,541.10 = 20,940.20 : x
  2. Step 2: Convert to fraction form
    49,027.40/73,541.10 = 20,940.20/x
  3. Step 3: Cross multiply
    49,027.40x = 73,541.10 × 20,940.20
  4. Step 4: Simplify right side
    49,027.40x = 1,539,965,342.22
  5. Step 5: Solve for x
    x = 1,539,965,342.22/49,027.40
  6. Step 6: Final answer
    x = 31,410.30

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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.