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Finding the Fourth Proportional to 52,239.94, 78,357.48 and 12,794.97

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Solution

The fourth proportional to 52,239.94, 78,357.48 and 12,794.97 is: 19,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,239.94 : 78,357.48 = 12,794.97 : x
  2. Step 2: Convert to fraction form
    52,239.94/78,357.48 = 12,794.97/x
  3. Step 3: Cross multiply
    52,239.94x = 78,357.48 × 12,794.97
  4. Step 4: Simplify right side
    52,239.94x = 1,002,581,605.88
  5. Step 5: Solve for x
    x = 1,002,581,605.88/52,239.94
  6. Step 6: Final answer
    x = 19,191.86

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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.