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Finding the Fourth Proportional to 48,704.80, 73,057.20 and 19,107.40

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Solution

The fourth proportional to 48,704.80, 73,057.20 and 19,107.40 is: 28,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,704.80 : 73,057.20 = 19,107.40 : x
  2. Step 2: Convert to fraction form
    48,704.80/73,057.20 = 19,107.40/x
  3. Step 3: Cross multiply
    48,704.80x = 73,057.20 × 19,107.40
  4. Step 4: Simplify right side
    48,704.80x = 1,395,933,143.28
  5. Step 5: Solve for x
    x = 1,395,933,143.28/48,704.80
  6. Step 6: Final answer
    x = 28,661.10

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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.