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Finding the Fourth Proportional to 52,443.71, 78,667.72 and 27,469.79

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Solution

The fourth proportional to 52,443.71, 78,667.72 and 27,469.79 is: 41,205.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,443.71 : 78,667.72 = 27,469.79 : x
  2. Step 2: Convert to fraction form
    52,443.71/78,667.72 = 27,469.79/x
  3. Step 3: Cross multiply
    52,443.71x = 78,667.72 × 27,469.79
  4. Step 4: Simplify right side
    52,443.71x = 2,160,985,748.18
  5. Step 5: Solve for x
    x = 2,160,985,748.18/52,443.71
  6. Step 6: Final answer
    x = 41,205.81

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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.