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Finding the Fourth Proportional to 39,952.79, 55,134.79 and 22,047.79

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Solution

The fourth proportional to 39,952.79, 55,134.79 and 22,047.79 is: 30,425.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,952.79 : 55,134.79 = 22,047.79 : x
  2. Step 2: Convert to fraction form
    39,952.79/55,134.79 = 22,047.79/x
  3. Step 3: Cross multiply
    39,952.79x = 55,134.79 × 22,047.79
  4. Step 4: Simplify right side
    39,952.79x = 1,215,600,078.66
  5. Step 5: Solve for x
    x = 1,215,600,078.66/39,952.79
  6. Step 6: Final answer
    x = 30,425.92

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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.