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Finding the Fourth Proportional to 39,489.69, 54,460.50 and 32,764.68

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Solution

The fourth proportional to 39,489.69, 54,460.50 and 32,764.68 is: 45,185.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,489.69 : 54,460.50 = 32,764.68 : x
  2. Step 2: Convert to fraction form
    39,489.69/54,460.50 = 32,764.68/x
  3. Step 3: Cross multiply
    39,489.69x = 54,460.50 × 32,764.68
  4. Step 4: Simplify right side
    39,489.69x = 1,784,380,855.14
  5. Step 5: Solve for x
    x = 1,784,380,855.14/39,489.69
  6. Step 6: Final answer
    x = 45,185.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.