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Finding the Fourth Proportional to 52,456.80, 78,685.20 and 33,794.40

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Solution

The fourth proportional to 52,456.80, 78,685.20 and 33,794.40 is: 50,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,456.80 : 78,685.20 = 33,794.40 : x
  2. Step 2: Convert to fraction form
    52,456.80/78,685.20 = 33,794.40/x
  3. Step 3: Cross multiply
    52,456.80x = 78,685.20 × 33,794.40
  4. Step 4: Simplify right side
    52,456.80x = 2,659,119,122.88
  5. Step 5: Solve for x
    x = 2,659,119,122.88/52,456.80
  6. Step 6: Final answer
    x = 50,691.60

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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.