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Finding the Fourth Proportional to 52,760.97, 79,142.47 and 19,463.90

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Solution

The fourth proportional to 52,760.97, 79,142.47 and 19,463.90 is: 29,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,760.97 : 79,142.47 = 19,463.90 : x
  2. Step 2: Convert to fraction form
    52,760.97/79,142.47 = 19,463.90/x
  3. Step 3: Cross multiply
    52,760.97x = 79,142.47 × 19,463.90
  4. Step 4: Simplify right side
    52,760.97x = 1,540,420,677.46
  5. Step 5: Solve for x
    x = 1,540,420,677.46/52,760.97
  6. Step 6: Final answer
    x = 29,196.22

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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.