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Finding the Fourth Proportional to 86,182.92, 129,274.42 and 27,023.21

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Solution

The fourth proportional to 86,182.92, 129,274.42 and 27,023.21 is: 40,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,182.92 : 129,274.42 = 27,023.21 : x
  2. Step 2: Convert to fraction form
    86,182.92/129,274.42 = 27,023.21/x
  3. Step 3: Cross multiply
    86,182.92x = 129,274.42 × 27,023.21
  4. Step 4: Simplify right side
    86,182.92x = 3,493,409,799.29
  5. Step 5: Solve for x
    x = 3,493,409,799.29/86,182.92
  6. Step 6: Final answer
    x = 40,534.83

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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.