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Finding the Fourth Proportional to 57,680.60, 86,520.90 and 46,016.60

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Solution

The fourth proportional to 57,680.60, 86,520.90 and 46,016.60 is: 69,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,680.60 : 86,520.90 = 46,016.60 : x
  2. Step 2: Convert to fraction form
    57,680.60/86,520.90 = 46,016.60/x
  3. Step 3: Cross multiply
    57,680.60x = 86,520.90 × 46,016.60
  4. Step 4: Simplify right side
    57,680.60x = 3,981,397,646.94
  5. Step 5: Solve for x
    x = 3,981,397,646.94/57,680.60
  6. Step 6: Final answer
    x = 69,024.90

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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.