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Finding the Fourth Proportional to 67,007.92, 100,441.68 and 22,619.20

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Solution

The fourth proportional to 67,007.92, 100,441.68 and 22,619.20 is: 33,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,007.92 : 100,441.68 = 22,619.20 : x
  2. Step 2: Convert to fraction form
    67,007.92/100,441.68 = 22,619.20/x
  3. Step 3: Cross multiply
    67,007.92x = 100,441.68 × 22,619.20
  4. Step 4: Simplify right side
    67,007.92x = 2,271,910,448.26
  5. Step 5: Solve for x
    x = 2,271,910,448.26/67,007.92
  6. Step 6: Final answer
    x = 33,905.10

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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.