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Finding the Fourth Proportional to 53,468.20, 80,115.90 and 33,711.40

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Solution

The fourth proportional to 53,468.20, 80,115.90 and 33,711.40 is: 50,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,468.20 : 80,115.90 = 33,711.40 : x
  2. Step 2: Convert to fraction form
    53,468.20/80,115.90 = 33,711.40/x
  3. Step 3: Cross multiply
    53,468.20x = 80,115.90 × 33,711.40
  4. Step 4: Simplify right side
    53,468.20x = 2,700,819,151.26
  5. Step 5: Solve for x
    x = 2,700,819,151.26/53,468.20
  6. Step 6: Final answer
    x = 50,512.63

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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.