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Finding the Fourth Proportional to 86,519.81, 129,797.01 and 36,599.69

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Solution

The fourth proportional to 86,519.81, 129,797.01 and 36,599.69 is: 54,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,519.81 : 129,797.01 = 36,599.69 : x
  2. Step 2: Convert to fraction form
    86,519.81/129,797.01 = 36,599.69/x
  3. Step 3: Cross multiply
    86,519.81x = 129,797.01 × 36,599.69
  4. Step 4: Simplify right side
    86,519.81x = 4,750,530,328.93
  5. Step 5: Solve for x
    x = 4,750,530,328.93/86,519.81
  6. Step 6: Final answer
    x = 54,906.85

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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.