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Finding the Fourth Proportional to 66,903.74, 100,359.42 and 29,481.32

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Solution

The fourth proportional to 66,903.74, 100,359.42 and 29,481.32 is: 44,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,903.74 : 100,359.42 = 29,481.32 : x
  2. Step 2: Convert to fraction form
    66,903.74/100,359.42 = 29,481.32/x
  3. Step 3: Cross multiply
    66,903.74x = 100,359.42 × 29,481.32
  4. Step 4: Simplify right side
    66,903.74x = 2,958,728,176.03
  5. Step 5: Solve for x
    x = 2,958,728,176.03/66,903.74
  6. Step 6: Final answer
    x = 44,223.66

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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.