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Finding the Fourth Proportional to 57,879.60, 86,848.20 and 22,820.40

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Solution

The fourth proportional to 57,879.60, 86,848.20 and 22,820.40 is: 34,241.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879.60 : 86,848.20 = 22,820.40 : x
  2. Step 2: Convert to fraction form
    57,879.60/86,848.20 = 22,820.40/x
  3. Step 3: Cross multiply
    57,879.60x = 86,848.20 × 22,820.40
  4. Step 4: Simplify right side
    57,879.60x = 1,981,910,663.28
  5. Step 5: Solve for x
    x = 1,981,910,663.28/57,879.60
  6. Step 6: Final answer
    x = 34,241.96

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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.