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Finding the Fourth Proportional to 67,591.20, 93,272.40 and 37,783.20

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Solution

The fourth proportional to 67,591.20, 93,272.40 and 37,783.20 is: 52,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,591.20 : 93,272.40 = 37,783.20 : x
  2. Step 2: Convert to fraction form
    67,591.20/93,272.40 = 37,783.20/x
  3. Step 3: Cross multiply
    67,591.20x = 93,272.40 × 37,783.20
  4. Step 4: Simplify right side
    67,591.20x = 3,524,129,743.68
  5. Step 5: Solve for x
    x = 3,524,129,743.68/67,591.20
  6. Step 6: Final answer
    x = 52,138.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.