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Finding the Fourth Proportional to 49,287.20, 73,941.60 and 19,697.60

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Solution

The fourth proportional to 49,287.20, 73,941.60 and 19,697.60 is: 29,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,287.20 : 73,941.60 = 19,697.60 : x
  2. Step 2: Convert to fraction form
    49,287.20/73,941.60 = 19,697.60/x
  3. Step 3: Cross multiply
    49,287.20x = 73,941.60 × 19,697.60
  4. Step 4: Simplify right side
    49,287.20x = 1,456,472,060.16
  5. Step 5: Solve for x
    x = 1,456,472,060.16/49,287.20
  6. Step 6: Final answer
    x = 29,550.72

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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.