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Finding the Fourth Proportional to 66,821.44, 100,244.40 and 22,452.88

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Solution

The fourth proportional to 66,821.44, 100,244.40 and 22,452.88 is: 33,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,821.44 : 100,244.40 = 22,452.88 : x
  2. Step 2: Convert to fraction form
    66,821.44/100,244.40 = 22,452.88/x
  3. Step 3: Cross multiply
    66,821.44x = 100,244.40 × 22,452.88
  4. Step 4: Simplify right side
    66,821.44x = 2,250,775,483.87
  5. Step 5: Solve for x
    x = 2,250,775,483.87/66,821.44
  6. Step 6: Final answer
    x = 33,683.43

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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.