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Finding the Fourth Proportional to 52,710.64, 79,067.20 and 18,974.96

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Solution

The fourth proportional to 52,710.64, 79,067.20 and 18,974.96 is: 28,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,710.64 : 79,067.20 = 18,974.96 : x
  2. Step 2: Convert to fraction form
    52,710.64/79,067.20 = 18,974.96/x
  3. Step 3: Cross multiply
    52,710.64x = 79,067.20 × 18,974.96
  4. Step 4: Simplify right side
    52,710.64x = 1,500,296,957.31
  5. Step 5: Solve for x
    x = 1,500,296,957.31/52,710.64
  6. Step 6: Final answer
    x = 28,462.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.