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Finding the Fourth Proportional to 86,446.80, 129,618.36 and 33,793.56

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Solution

The fourth proportional to 86,446.80, 129,618.36 and 33,793.56 is: 50,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,446.80 : 129,618.36 = 33,793.56 : x
  2. Step 2: Convert to fraction form
    86,446.80/129,618.36 = 33,793.56/x
  3. Step 3: Cross multiply
    86,446.80x = 129,618.36 × 33,793.56
  4. Step 4: Simplify right side
    86,446.80x = 4,380,265,825.76
  5. Step 5: Solve for x
    x = 4,380,265,825.76/86,446.80
  6. Step 6: Final answer
    x = 50,670.07

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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.