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Finding the Fourth Proportional to 52,797.92, 79,190.73 and 21,206.71

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Solution

The fourth proportional to 52,797.92, 79,190.73 and 21,206.71 is: 31,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,797.92 : 79,190.73 = 21,206.71 : x
  2. Step 2: Convert to fraction form
    52,797.92/79,190.73 = 21,206.71/x
  3. Step 3: Cross multiply
    52,797.92x = 79,190.73 × 21,206.71
  4. Step 4: Simplify right side
    52,797.92x = 1,679,374,845.80
  5. Step 5: Solve for x
    x = 1,679,374,845.80/52,797.92
  6. Step 6: Final answer
    x = 31,807.59

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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.