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Finding the Fourth Proportional to 67,709.52, 101,360.16 and 36,450

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Solution

The fourth proportional to 67,709.52, 101,360.16 and 36,450 is: 54,565.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,709.52 : 101,360.16 = 36,450 : x
  2. Step 2: Convert to fraction form
    67,709.52/101,360.16 = 36,450/x
  3. Step 3: Cross multiply
    67,709.52x = 101,360.16 × 36,450
  4. Step 4: Simplify right side
    67,709.52x = 3,694,577,832
  5. Step 5: Solve for x
    x = 3,694,577,832/67,709.52
  6. Step 6: Final answer
    x = 54,565.12

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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.