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Finding the Fourth Proportional to 66,806.41, 100,218.84 and 22,445.85

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Solution

The fourth proportional to 66,806.41, 100,218.84 and 22,445.85 is: 33,671.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,806.41 : 100,218.84 = 22,445.85 : x
  2. Step 2: Convert to fraction form
    66,806.41/100,218.84 = 22,445.85/x
  3. Step 3: Cross multiply
    66,806.41x = 100,218.84 × 22,445.85
  4. Step 4: Simplify right side
    66,806.41x = 2,249,497,049.81
  5. Step 5: Solve for x
    x = 2,249,497,049.81/66,806.41
  6. Step 6: Final answer
    x = 33,671.87

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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.