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Finding the Fourth Proportional to 49,192.80, 73,798.80 and 21,112.80

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Solution

The fourth proportional to 49,192.80, 73,798.80 and 21,112.80 is: 31,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,192.80 : 73,798.80 = 21,112.80 : x
  2. Step 2: Convert to fraction form
    49,192.80/73,798.80 = 21,112.80/x
  3. Step 3: Cross multiply
    49,192.80x = 73,798.80 × 21,112.80
  4. Step 4: Simplify right side
    49,192.80x = 1,558,099,304.64
  5. Step 5: Solve for x
    x = 1,558,099,304.64/49,192.80
  6. Step 6: Final answer
    x = 31,673.32

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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.