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Finding the Fourth Proportional to 52,843.29, 79,241.90 and 19,988.25

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Solution

The fourth proportional to 52,843.29, 79,241.90 and 19,988.25 is: 29,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,843.29 : 79,241.90 = 19,988.25 : x
  2. Step 2: Convert to fraction form
    52,843.29/79,241.90 = 19,988.25/x
  3. Step 3: Cross multiply
    52,843.29x = 79,241.90 × 19,988.25
  4. Step 4: Simplify right side
    52,843.29x = 1,583,906,807.73
  5. Step 5: Solve for x
    x = 1,583,906,807.73/52,843.29
  6. Step 6: Final answer
    x = 29,973.66

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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.