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Finding the Fourth Proportional to 76,599.33, 114,899.00 and 20,439.65

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Solution

The fourth proportional to 76,599.33, 114,899.00 and 20,439.65 is: 30,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,599.33 : 114,899.00 = 20,439.65 : x
  2. Step 2: Convert to fraction form
    76,599.33/114,899.00 = 20,439.65/x
  3. Step 3: Cross multiply
    76,599.33x = 114,899.00 × 20,439.65
  4. Step 4: Simplify right side
    76,599.33x = 2,348,494,668.66
  5. Step 5: Solve for x
    x = 2,348,494,668.66/76,599.33
  6. Step 6: Final answer
    x = 30,659.47

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Similar ratio
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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.