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Finding the Fourth Proportional to 66,449.70, 99,673.92 and 22,079.70

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Solution

The fourth proportional to 66,449.70, 99,673.92 and 22,079.70 is: 33,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,449.70 : 99,673.92 = 22,079.70 : x
  2. Step 2: Convert to fraction form
    66,449.70/99,673.92 = 22,079.70/x
  3. Step 3: Cross multiply
    66,449.70x = 99,673.92 × 22,079.70
  4. Step 4: Simplify right side
    66,449.70x = 2,200,770,251.42
  5. Step 5: Solve for x
    x = 2,200,770,251.42/66,449.70
  6. Step 6: Final answer
    x = 33,119.34

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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.