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Finding the Fourth Proportional to 89,684.62, 134,480.20 and 33,478.50

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Solution

The fourth proportional to 89,684.62, 134,480.20 and 33,478.50 is: 50,200.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,684.62 : 134,480.20 = 33,478.50 : x
  2. Step 2: Convert to fraction form
    89,684.62/134,480.20 = 33,478.50/x
  3. Step 3: Cross multiply
    89,684.62x = 134,480.20 × 33,478.50
  4. Step 4: Simplify right side
    89,684.62x = 4,502,195,859.08
  5. Step 5: Solve for x
    x = 4,502,195,859.08/89,684.62
  6. Step 6: Final answer
    x = 50,200.31

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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.