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Finding the Fourth Proportional to 33,661.80, 50,492.70 and 21,834.60

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Solution

The fourth proportional to 33,661.80, 50,492.70 and 21,834.60 is: 32,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,661.80 : 50,492.70 = 21,834.60 : x
  2. Step 2: Convert to fraction form
    33,661.80/50,492.70 = 21,834.60/x
  3. Step 3: Cross multiply
    33,661.80x = 50,492.70 × 21,834.60
  4. Step 4: Simplify right side
    33,661.80x = 1,102,487,907.42
  5. Step 5: Solve for x
    x = 1,102,487,907.42/33,661.80
  6. Step 6: Final answer
    x = 32,751.90

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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.