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Finding the Fourth Proportional to 73,087.72, 109,614.30 and 33,620.20

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Solution

The fourth proportional to 73,087.72, 109,614.30 and 33,620.20 is: 50,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,087.72 : 109,614.30 = 33,620.20 : x
  2. Step 2: Convert to fraction form
    73,087.72/109,614.30 = 33,620.20/x
  3. Step 3: Cross multiply
    73,087.72x = 109,614.30 × 33,620.20
  4. Step 4: Simplify right side
    73,087.72x = 3,685,254,688.86
  5. Step 5: Solve for x
    x = 3,685,254,688.86/73,087.72
  6. Step 6: Final answer
    x = 50,422.35

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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.