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Finding the Fourth Proportional to 52,400.70, 78,576.84 and 16,855.43

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Solution

The fourth proportional to 52,400.70, 78,576.84 and 16,855.43 is: 25,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,400.70 : 78,576.84 = 16,855.43 : x
  2. Step 2: Convert to fraction form
    52,400.70/78,576.84 = 16,855.43/x
  3. Step 3: Cross multiply
    52,400.70x = 78,576.84 × 16,855.43
  4. Step 4: Simplify right side
    52,400.70x = 1,324,446,033.36
  5. Step 5: Solve for x
    x = 1,324,446,033.36/52,400.70
  6. Step 6: Final answer
    x = 25,275.35

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1.5x scale

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.