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Finding the Fourth Proportional to 39,951.97, 55,133.87 and 22,047.49

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Solution

The fourth proportional to 39,951.97, 55,133.87 and 22,047.49 is: 30,425.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,951.97 : 55,133.87 = 22,047.49 : x
  2. Step 2: Convert to fraction form
    39,951.97/55,133.87 = 22,047.49/x
  3. Step 3: Cross multiply
    39,951.97x = 55,133.87 × 22,047.49
  4. Step 4: Simplify right side
    39,951.97x = 1,215,563,171.82
  5. Step 5: Solve for x
    x = 1,215,563,171.82/39,951.97
  6. Step 6: Final answer
    x = 30,425.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.