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Finding the Fourth Proportional to 66,847.59, 100,287.11 and 19,463.72

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Solution

The fourth proportional to 66,847.59, 100,287.11 and 19,463.72 is: 29,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,847.59 : 100,287.11 = 19,463.72 : x
  2. Step 2: Convert to fraction form
    66,847.59/100,287.11 = 19,463.72/x
  3. Step 3: Cross multiply
    66,847.59x = 100,287.11 × 19,463.72
  4. Step 4: Simplify right side
    66,847.59x = 1,951,959,629.90
  5. Step 5: Solve for x
    x = 1,951,959,629.90/66,847.59
  6. Step 6: Final answer
    x = 29,200.15

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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.